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The Watchers - Daily news service | Watchers.NEWS

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New activity/unrest was reported for 2 volcanoes between February 14 and 20, 2018. During the same period, ongoing activity was reported for 12 volcanoes.
New activity/unrest: Mayon, Luzon (Philippines) | Sinabung, Indonesia.

Ongoing activity: Agung, Bali (Indonesia) | Aira, Kyushu (Japan) | Ambae, Vanuatu | Cleveland, Chuginadak Island (USA) | Dukono, Halmahera (Indonesia) | Ebeko, Paramushir Island (Russia) | Karymsky, Eastern Kamchatka (Russia) | Kilauea, Hawaiian Islands (USA) | Klyuchevskoy, Central Kamchatka (Russia) | Sabancaya, Peru | San Miguel, El Salvador | Sheveluch, Central Kamchatka (Russia).
The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian's Global Volcanism Program and the US Geological Survey's Volcano Hazards Program. Updated by 23:00 UTC every Wednesday, notices of volcanic activity posted are preliminary and subject to change as events are studied in more detail. This is not a comprehensive list of all of Earth's volcanoes erupting during the week. Carefully reviewed, detailed reports on various volcanoes are published monthly in the Bulletin of the Global Volcanism Network.
New activity/unrest

Mayon, Luzon (Philippines)

PHIVOLCS reported that during 14-20 February daily activity at Mayon continued to be characterized by lava effusion from the summit crater, rockfalls, lava fountains, steam emissions, advancing lava flows on the flanks, and pyroclastic flows. Weak and sporadic lava fountaining events each lasted between 5 and 239 minutes, and were sometimes accompanied by rumbling sounds audible with a 10-km radius. Heavy rainfall on 14 February caused lahars in the Anoling drainage, and sediment-laden streams in most channels where pyroclastic flow deposits were emplaced. During 16-17 February lava fountains were 200-500 m tall and generated steam plumes that drifted SW, WSW, and NW. A lava-fountaining event that began at 0103 on 17 February lasted for 12 hours and 18 minutes. Lava flows 3.3 km, 4.5 km, and 900 m long in the Mi-isi (S), Bonga (SE), and Basud (E) drainages, respectively, continued to be active. Pyroclastic flows traveled 4.2-4.6 km in the Mi-isi, Bonga, and Basud drainages. The Alert Level remained at 4 (on a 0-5 scale) and the public was warned to remain outside of the Danger Zone, defined as an area within an 8-km radius.

Geological summary: Beautifully symmetrical Mayon volcano, which rises to 2462 m above the Albay Gulf, is the Philippines' most active volcano. The structurally simple volcano has steep upper slopes averaging 35-40 degrees that are capped by a small summit crater. Historical eruptions at this basaltic-andesitic volcano date back to 1616 and range from strombolian to basaltic plinian, with cyclical activity beginning with basaltic eruptions, followed by longer term andesitic lava flows. Eruptions occur predominately from the central conduit and have also produced lava flows that travel far down the flanks. Pyroclastic flows and mudflows have commonly swept down many of the approximately 40 ravines that radiate from the summit and have often devastated populated lowland areas. Mayon's most violent eruption, in 1814, killed more than 1200 people and devastated several towns.

Sinabung, Indonesia

PVMBG reported that at 0853 on 19 February a large explosive event at Sinabung generated a dark gray plume with a high volume of ash that rose at least to 16.8 km (55,000 ft) a.s.l. According to the Darwin VAAC, ash plumes that were identified in satellite images, recorded by webcams, and reported by PVMBG continued to rise throughout the day to 13.7 km (45,000 ft) a.s.l. and drift 320 km NNW. Parts of the ash plumes drifted in multiple directions at lower altitudes. As many as 10 pyroclastic flows were observed, traveling as far as 4.9 km SSE and 3.5 km E. Ash and tephra as large as pebbles fell in areas downwind including Simpang Empat (7 km SE), the Namanteran district, Pqyung (5 km SSW), Tiganderket (7 km W), Munthe, Kutambaru (20 km NW), Perbaji (4 km SW), and Kutarayat. Conditions in five districts were so dark that visibility was only about 5 m. Some residents outside of the evacuation zone self-evacuated. The event was possibly the largest since the beginning of the current eruption, which began in September 2013. The Alert Level remained at 4 (on a scale of 1-4), with a general exclusion zone of 3 km and extensions of 7 km on the SSE sector, 6 km in the ESE sector, and 4 km in the NNE sector.

Anak SD berteriak dan takut melihat dahsyatnya letusan Gunung Sinabung pagi tadi. Awan panas dengan suhu 600-800 derajat celcius menuruni lereng sejau 4,9 km. #Sinabung #SinabungErupsi @RadioElshinta @BNPB_Indonesia #VisitWonderfulIndonesia pic.twitter.com/HFMkZuPGts
- Sutopo Purwo Nugroho (@Sutopo_PN) February 19, 2018

Dahsyatnya letusan Gunung Sinabung. Tinggi kolom hingga 5 km disertai luncuran awan panas hingga 4,9 km. Suara bergemuruh. Baru kali ini letusan disertai suara gemuruh sejak 2014-2018. Tidak ada korban jiwa. Semua penduduk di zona merah sudah lama diungsikan. #volcano #Sinabung pic.twitter.com/P2RRfMcm08
- Sutopo Purwo Nugroho (@Sutopo_PN) February 19, 2018

Geological summary: Gunung Sinabung is a Pleistocene-to-Holocene stratovolcano with many lava flows on its flanks. The migration of summit vents along a N-S line gives the summit crater complex an elongated form. The youngest crater of this conical andesitic-to-dacitic edifice is at the southern end of the four overlapping summit craters. An unconfirmed eruption was noted in 1881, and solfataric activity was seen at the summit and upper flanks in 1912. No confirmed historical eruptions were recorded prior to explosive eruptions during August-September 2010 that produced ash plumes to 5 km above the summit.

Ongoing activity

Agung, Bali (Indonesia)

PVMBG reported that an event at Agung recorded at 1149 on 13 February generated an ash plume that rose to an altitude of 4.5 km (14,900 ft) a.s.l. and drifted E. The Alert Level remained at 4 (on a scale of 1-4) and the exclusion zone continued at a 6-km radius.

Geological summary: Symmetrical Agung stratovolcano, Bali's highest and most sacred mountain, towers over the eastern end of the island. The volcano, whose name means "Paramount," rises above the SE caldera rim of neighboring Batur volcano, and the northern and southern flanks extend to the coast. The summit area extends 1.5 km E-W, with the high point on the W and a steep-walled 800-m-wide crater on the E. The Pawon cone is located low on the SE flank. Only a few eruptions dating back to the early 19th century have been recorded in historical time. The 1963-64 eruption, one of the largest in the 20th century, produced voluminous ashfall along with devastating pyroclastic flows and lahars that caused extensive damage and many fatalities.

Aira, Kyushu (Japan)

JMA reported that very small events occurred at Minamidake crater (at Aira Caldera's Sakurajima volcano) during 13-16 and 19 February. An explosive event at 0820 on 19 February generated a plume that rose 1.5 km above the crater rim up into meteorological clouds. The Alert Level remained at 3 (on a 5-level scale).

Geological summary: The Aira caldera in the northern half of Kagoshima Bay contains the post-caldera Sakurajima volcano, one of Japan's most active. Eruption of the voluminous Ito pyroclastic flow accompanied formation of the 17 x 23 km caldera about 22,000 years ago. The smaller Wakamiko caldera was formed during the early Holocene in the NE corner of the Aira caldera, along with several post-caldera cones. The construction of Sakurajima began about 13,000 years ago on the southern rim of Aira caldera and built an island that was finally joined to the Osumi Peninsula during the major explosive and effusive eruption of 1914. Activity at the Kitadake summit cone ended about 4850 years ago, after which eruptions took place at Minamidake. Frequent historical eruptions, recorded since the 8th century, have deposited ash on Kagoshima, one of Kyushu's largest cities, located across Kagoshima Bay only 8 km from the summit. The largest historical eruption took place during 1471-76.

Ambae, Vanuatu

Based on satellite and webcam observations, the Wellington VAAC reported that during 17-19 February ash plumes from Ambae rose to altitudes of 3-5.5 km (10,000-18,000 ft) a.s.l. and drifted in multiple directions.

Geological summary: Ambae, also known as Aoba, is a massive 2500 km3 basaltic shield that is the most voluminous volcano of the New Hebrides archipelago. A pronounced NE-SW-trending rift zone dotted with scoria cones gives the 16 x 38 km island an elongated form. A broad pyroclastic cone containing three crater lakes is located at the summit within the youngest of at least two nested calderas, the largest of which is 6 km in diameter. Post-caldera explosive eruptions formed the summit craters of Lake Voui (also spelled Vui) and Lake Manaro Ngoru about 360 years ago. A tuff cone was constructed within Lake Voui about 60 years later. The latest known flank eruption, about 300 years ago, destroyed the population of the Nduindui area near the western coast.

Cleveland, Chuginadak Island (USA)

AVO reported that low-level unrest continued at Cleveland. Thermal anomalies were identified in satellite data during 15-16 February, and possibly on 17 February. The Aviation Color Code remained at Yellow and the Volcano Alert Level remained at Advisory.

Geological summary: Beautifully symmetrical Mount Cleveland stratovolcano is situated at the western end of the uninhabited, dumbbell-shaped Chuginadak Island. It lies SE across Carlisle Pass strait from Carlisle volcano and NE across Chuginadak Pass strait from Herbert volcano. Cleveland is joined to the rest of Chuginadak Island by a low isthmus. The 1730-m-high Mount Cleveland is the highest of the Islands of the Four Mountains group and is one of the most active of the Aleutian Islands. The native name for Mount Cleveland, Chuginadak, refers to the Aleut goddess of fire, who was thought to reside on the volcano. Numerous large lava flows descend the steep-sided flanks. It is possible that some 18th-to-19th century eruptions attributed to Carlisle should be ascribed to Cleveland (Miller et al., 1998). In 1944 Cleveland produced the only known fatality from an Aleutian eruption. Recent eruptions have been characterized by short-lived explosive ash emissions, at times accompanied by lava fountaining and lava flows down the flanks.

Dukono, Halmahera (Indonesia)

Based on analyses of satellite imagery, wind model data, and notices from PVMBG, the Darwin VAAC reported that during 15-20 February ash plumes from Dukono rose to an altitude of 1.8 km (6,000 ft) a.s.l. and drifted SE, S, SW, and W.

Geological summary: Reports from this remote volcano in northernmost Halmahera are rare, but Dukono has been one of Indonesia's most active volcanoes. More-or-less continuous explosive eruptions, sometimes accompanied by lava flows, occurred from 1933 until at least the mid-1990s, when routine observations were curtailed. During a major eruption in 1550, a lava flow filled in the strait between Halmahera and the north-flank cone of Gunung Mamuya. This complex volcano presents a broad, low profile with multiple summit peaks and overlapping craters. Malupang Wariang, 1 km SW of the summit crater complex, contains a 700 x 570 m crater that has also been active during historical time.

Ebeko, Paramushir Island (Russia)

Based on observations by volcanologists in Severo-Kurilsk (Paramushir Island), about 7 km E of Ebeko, explosions during 9-10 and 14 February generated ash plumes that rose as high as 2.2 km (7,200 ft) a.s.l. The Aviation Color Code remained at Orange (the second highest level on a four-color scale).

Geological summary: The flat-topped summit of the central cone of Ebeko volcano, one of the most active in the Kuril Islands, occupies the northern end of Paramushir Island. Three summit craters located along a SSW-NNE line form Ebeko volcano proper, at the northern end of a complex of five volcanic cones. Blocky lava flows extend west from Ebeko and SE from the neighboring Nezametnyi cone. The eastern part of the southern crater contains strong solfataras and a large boiling spring. The central crater is filled by a lake about 20 m deep whose shores are lined with steaming solfataras; the northern crater lies across a narrow, low barrier from the central crater and contains a small, cold crescentic lake. Historical activity, recorded since the late-18th century, has been restricted to small-to-moderate explosive eruptions from the summit craters. Intense fumarolic activity occurs in the summit craters, on the outer flanks of the cone, and in lateral explosion craters.

Karymsky, Eastern Kamchatka (Russia)

KVERT reported that a thermal anomaly over Karymsky was identified in satellite images on 9 February. The Aviation Color Code remained at Orange (the second highest level on a four-color scale).

Geological summary: Karymsky, the most active volcano of Kamchatka's eastern volcanic zone, is a symmetrical stratovolcano constructed within a 5-km-wide caldera that formed during the early Holocene. The caldera cuts the south side of the Pleistocene Dvor volcano and is located outside the north margin of the large mid-Pleistocene Polovinka caldera, which contains the smaller Akademia Nauk and Odnoboky calderas. Most seismicity preceding Karymsky eruptions originated beneath Akademia Nauk caldera, located immediately south. The caldera enclosing Karymsky formed about 7600-7700 radiocarbon years ago; construction of the stratovolcano began about 2000 years later. The latest eruptive period began about 500 years ago, following a 2300-year quiescence. Much of the cone is mantled by lava flows less than 200 years old. Historical eruptions have been vulcanian or vulcanian-strombolian with moderate explosive activity and occasional lava flows from the summit crater.

Kilauea, Hawaiian Islands (USA)

During 14-20 February HVO reported that the lava lake continued to rise, fall, and spatter in Kilauea's Overlook crater. Webcams recorded incandescence from a small lava pond in a pit on the W side of Pu'u 'O'o Crater. Surface lava flows were active above and on the pali, and on the coastal plain.

Geological summary: Kilauea volcano, which overlaps the east flank of the massive Mauna Loa shield volcano, has been Hawaii's most active volcano during historical time. Eruptions are prominent in Polynesian legends; written documentation extending back to only 1820 records frequent summit and flank lava flow eruptions that were interspersed with periods of long-term lava lake activity that lasted until 1924 at Halemaumau crater, within the summit caldera. The 3 x 5 km caldera was formed in several stages about 1500 years ago and during the 18th century; eruptions have also originated from the lengthy East and SW rift zones, which extend to the sea on both sides of the volcano. About 90% of the surface of the basaltic shield volcano is formed of lava flows less than about 1100 years old; 70% of the volcano's surface is younger than 600 years. A long-term eruption from the East rift zone that began in 1983 has produced lava flows covering more than 100 sq km, destroying nearly 200 houses and adding new coastline to the island.

Klyuchevskoy, Central Kamchatka (Russia)

Based on information from the Yelizovo Airport (UHPP) and satellite images, the Tokyo VAAC reported that on 18 February an ash plume from Klyuchevskoy rose to an altitude of 5.2 km (17,000 ft) a.s.l. and drifted SW.

Geological summary: Klyuchevskoy (also spelled Kliuchevskoi) is Kamchatka's highest and most active volcano. Since its origin about 6000 years ago, the beautifully symmetrical, 4835-m-high basaltic stratovolcano has produced frequent moderate-volume explosive and effusive eruptions without major periods of inactivity. It rises above a saddle NE of sharp-peaked Kamen volcano and lies SE of the broad Ushkovsky massif. More than 100 flank eruptions have occurred during the past roughly 3000 years, with most lateral craters and cones occurring along radial fissures between the unconfined NE-to-SE flanks of the conical volcano between 500 m and 3600 m elevation. The morphology of the 700-m-wide summit crater has been frequently modified by historical eruptions, which have been recorded since the late-17th century. Historical eruptions have originated primarily from the summit crater, but have also included numerous major explosive and effusive eruptions from flank craters.

Sabancaya, Peru

Observatorio Vulcanológico del Sur del IGP (OVS-IGP) and Observatorio Vulcanológico del INGEMMET (OVI) reported that explosive activity at Sabancaya was similar to the previous week; there was an average of 19 explosions recorded per day during 12-18 February. Seismicity was dominated by long-period events, with signals indicating emissions. Gas-and-ash plumes rose 2.5 km above the crater rim and drifted 30 km NW, SW, and S. The MIROVA system detected three thermal anomalies. The sulfur dioxide flux was the highest value yet registered during the eruption, at 9,270 tons per day on 15 February. The report noted that the public should not to approach the crater within a 12-km radius.

Geological summary: Sabancaya, located in the saddle NE of Ampato and SE of Hualca Hualca volcanoes, is the youngest of these volcanic centers and the only one to have erupted in historical time. The oldest of the three, Nevado Hualca Hualca, is of probable late-Pliocene to early Pleistocene age. The name Sabancaya (meaning "tongue of fire" in the Quechua language) first appeared in records in 1595 CE, suggesting activity prior to that date. Holocene activity has consisted of Plinian eruptions followed by emission of voluminous andesitic and dacitic lava flows, which form an extensive apron around the volcano on all sides but the south. Records of historical eruptions date back to 1750.

San Miguel, El Salvador

SNET reported that during 0800-1100 on 19 February gas-and-ash emissions from San Miguel rose 350 m above the crater rim and drifted SW. Ash fell on the upper flanks of the volcano, and a sulfur odor was reported in La Piedra farm.

Geological summary: The symmetrical cone of San Miguel volcano, one of the most active in El Salvador, rises from near sea level to form one of the country's most prominent landmarks. The unvegetated summit rises above slopes draped with coffee plantations. A broad, deep crater complex that has been frequently modified by historical eruptions (recorded since the early 16th century) caps the truncated summit, also known locally as Chaparrastique. Radial fissures on the flanks of the basaltic-andesitic volcano have fed a series of historical lava flows, including several erupted during the 17th-19th centuries that reached beyond the base of the volcano on the N, NE, and SE sides. The SE-flank flows are the largest and form broad, sparsely vegetated lava fields crossed by highways and a railroad skirting the base of the volcano. The location of flank vents has migrated higher on the edifice during historical time, and the most recent activity has consisted of minor ash eruptions from the summit crater.

Sheveluch, Central Kamchatka (Russia)

KVERT reported that a thermal anomaly over Sheveluch was identified in satellite images during 9-11 and 15 February. The Aviation Color Code remained at Orange.

Geological summary: The high, isolated massif of Sheveluch volcano (also spelled Shiveluch) rises above the lowlands NNE of the Kliuchevskaya volcano group. The 1300 cu km volcano is one of Kamchatka's largest and most active volcanic structures. The summit of roughly 65,000-year-old Stary Shiveluch is truncated by a broad 9-km-wide late-Pleistocene caldera breached to the south. Many lava domes dot its outer flanks. The Molodoy Shiveluch lava dome complex was constructed during the Holocene within the large horseshoe-shaped caldera; Holocene lava dome extrusion also took place on the flanks of Stary Shiveluch. At least 60 large eruptions have occurred during the Holocene, making it the most vigorous andesitic volcano of the Kuril-Kamchatka arc. Widespread tephra layers from these eruptions have provided valuable time markers for dating volcanic events in Kamchatka. Frequent collapses of dome complexes, most recently in 1964, have produced debris avalanches whose deposits cover much of the floor of the breached caldera.

Source: GVP

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The Weekly Volcanic Activity Report: February 14 - 20, 2018

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New activity/unrest was reported for 2 volcanoes between February 14 and 20, 2018. During the same period, ongoing activity was reported for 12 volcanoes. New activity/unrest: Mayon, Luzon (Philippines) | Sinabung, Indonesia.

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Mega erupción del Volcán Agung en indonesia 18/02/2018

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Gracias a CNN Indonesia Redes sociales Facebook: Ruben Alonso Twitter: @RubenDoc420

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Timelapse Popocatépetl del 17 al 18 de Febrero del 2018

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Gracias a Webcams de México Gracias a Yukize Después del sismo del día viernes 16/02/2018, el volcán Popocatépetl entro nuevamente en actividad (mínima), por otra parte vemos que en todo el mundo esto sigue aumentando, y tal parece que esto no va a parar, sin mas por el momento me despido, estamos al tanto.

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Popocatépetl expulsa material incandescente posterior al sismo del 19/02/2018

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Pudimos percatarnos que justo después del sismo de hoy en la madrugada (19/02/2018) en Oaxaca (6.0), el Popocatépetl presentó actividad volcánica, por lo cual debemos de mantenernos alerta por cualquier posible contingencia.

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Así es como el Popocatépetl despierta nuevamente hoy 21/021/2018

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Después del sismo del pasado 16/02/2018, el Popocatépetl se volvió a activar, sin embargo, el día de hoy, presenta esta actividad ininterrumpida nuevamente, lo cual nos hace pensar en los posibles eventos que puedan estar relacionados al volcán, por si fuera poco recordemos que el Popocatépetl a diferencia de otros volcanes del mundo, es de los mas poderosos sobre la tierra, entonces debemos estar atentos.

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First Off, I'm about real and interesting things going on in this world !! Dedicated to Watching the End Time Events that Lead to the Return of Our Lord Jesu...

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Multiple West Yellowstone Earthquake Swarms, Texas, California and New Madrid Quakes

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In this video i take a look at recent earthquake activity in the US. There are multiple swarms around Yellowstone we are watching. You can find updated info at the links below. Learn More: http://quakes.globalincidentmap.com/ www.undergroundworldnews.com Your Support of Independent Media Is Appreciated: Bitcoin Address- 1PxukfsHv13DbTPMwbRrXQ6wqsKQmgwQqD Ether- 0x6cf70890e7188dac057cb0284de0f9104ed07a52 Lite Coin - Lhiaz85TyiNmCGDMaQ8DGRGETXfAvYDkTG https://www.paypal.me/dahboo7 Crypto Kings Telegram- https://t.me/CryptoKings7 Get Free Crypto Coins Daily, No strings Attached!

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Timelapse Popocatépetl del día 22 al 23 de Febrero del 2018

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Podemos darnos cuenta de que el volcán Popocatépetl presenta esta actividad y no se ha detenido, a lo cual debemos estar atentos por cualquier posible contingencia, sin mas, estaremos informando.

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2/23/18 Yellowstone Volcanic Tremor and Proof USGS Lied About Locating MicroQuakes

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Parts: 00:07 - USGS lied???!!! 02:32 - Some magma intrusion it seems! 04:09 - Volcanic tremor at/near Yellowstone confirmed. 12:21 - Strange and just plain odd signals at LKWY.

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Mount Sinabung update Is the Indonesia volcano still erupting? Is it dangerous?

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Mount Sinabung update: Is the Indonesia volcano still erupting? YES Is it dangerous? YES According to a NASA statement: The volcanic plume also contained sulfur dioxide (SO2), which can irritate the human nose and throat when breathed in.

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might not have a 2 week warning for eruption!!

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New Research, Yellowstone and other Volcano's, Might Not Have A 2 Week Warning For Eruption!!

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Old Faithful Upper Geyser Basin: Cool, Crazy, Weird, and Funny Happenings (SEE DESCRIPTION)

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This video is extremely long so please select a part below or feel free to sit back, enjoy the music, and watch the show! God bless. Parts: 00:38 - Large O.F. eruption w/ large eruption back left 01:22 - Strange Spot Lights; keep it in mind 03:44 - Strange light in background on geyser 04:49 - Possible meteor or airplane 05:51 - Bright O.F.

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important to know: yellowstone volcano earthquake swarm inside upper magma chamber!

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IMPORTANT TO KNOW: Yellowstone Volcano Earthquake Swarm inside Upper Magma Chamber!

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According to Jamie Farrell says it is shaped like a gigantic frying pan about 3 to 9 miles beneath the surface, with a "handle" rising to the northeast. The chamber is about 19 miles from northwest to southeast and 55 miles southwest to northeast.

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Artea volcano is a continuously active basaltic shield located in the Afar region of Ethiopia 2018

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Follow me : Facebook :https://www.facebook.com/WORLD-of-SIGNS-nared-king-161045321169174/?ref=bookmarks twitter : https://twitter.com/ahmedmoustfeT blogspot : https://wordofsigns.blogspot.com.eg/ vk.com : https://vk.com/id457602553 ***************************** What happened on our Planet. What happened in the world. The Whisper of the Universe daily produces an overview of natural phenomena and relevant news of the day. Это произошло на нашей Земле !!!

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زلزال المكسيك!! STRONG 7, 3 EARTHQUAKE IN MEXICO CITY, MEXICO 16 feb 2018 ,ЗЕМЛЕТРЯСЕНИЕ В МЕКСИКЕ

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Follow me : Facebook :https://www.facebook.com/WORLD-of-SIGNS-nared-king-161045321169174/?ref=bookmarks twitter : https://twitter.com/ahmedmoustfeT blogspot : https://wordofsigns.blogspot.com.eg/ vk.com : https://vk.com/id457602553 ***************************** What happened on our Planet. What happened in the world. The Whisper of the Universe daily produces an overview of natural phenomena and relevant news of the day. Это произошло на нашей Земле !!!

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Eruption of Popocatepet l Volcano after 7.5 Earthquake in Mexico 16 ,February 2018

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Follow me : Facebook :https://www.facebook.com/WORLD-of-SIGNS-nared-king-161045321169174/?ref=bookmarks twitter : https://twitter.com/ahmedmoustfeT blogspot : https://wordofsigns.blogspot.com.eg/ vk.com : https://vk.com/id457602553 ***************************** What happened on our Planet. What happened in the world. The Whisper of the Universe daily produces an overview of natural phenomena and relevant news of the day. Это произошло на нашей Земле !!!

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eripts volcano sungabong indonesia 19 02 2018 , возделывает вулкан sinabung indonesia 19 02 2018,

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Follow me : Facebook :https://www.facebook.com/WORLD-of-SIGNS-nared-king-161045321169174/?ref=bookmarks twitter : https://twitter.com/ahmedmoustfeT blogspot : https://wordofsigns.blogspot.com.eg/ vk.com : https://vk.com/id457602553 ***************************** What happened on our Planet. What happened in the world. The Whisper of the Universe daily produces an overview of natural phenomena and relevant news of the day. Это произошло на нашей Земле !!!

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Yellowstone Volcano, 29 Earthquakes USGS Reports, only 10%, Enhances Spectrograms

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Just think this is just 10% of the earthquakes that are happening. The upper magma chambe is said to be 3-9 miles under the surface people are walking on. That was reported by Jamie Farrell in 2015. How deep is it now? Patreon https://www.patreon.com/user?u=3969921 PayPal paypal.me/Marygreeley https://www.paypal.com/pools/c/7ZFN5i3TVd https://www.paypal.com/donate/?token=IhqBlUUP7tdIytQZT92rsRS9cbqiK2Y-8Aa9-d1zJlaZDRb7ioZJLrY_On7fChawt2nRrG&country.x=US&locale.x=US

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VOLCAN DE FUEGO DE GUATEMALA ENTRA EN ERUPCION (VIDEO) 22/02/2018

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El volcán de Fuego, ubicado entre los departamentos de Escuintla, Sacatepéquez y Chimaltenango y a unos 50 kilómetros al oeste de la capital de Guatemala, entró hoy en erupción Según el Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (Insivumeh), la erupción del coloso, de 3,763 metros de altura, es de tipo estromboliano.

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2/19/2018 -- West Coast California Volcanoes begin swarming -- Major volcanism internationally

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Earthquake Resources: Check tsunami warnings issued by the US agencies here: http://tsunami.gov/ Pacific Tsunami Warning Center: http://ptwc.weather.gov/ Alaska Tsunami Warning Center: http://wcatwc.arh.noaa.gov/ National Data Buoy Center (NDBC) buoy monitoring: http://www.ndbc.noaa.gov/ Deep-ocean Assessment Reporting Tsunamis (DART) buoys: http://www.ndbc.noaa.gov/dart.shtml ______ Global Earthquake Monitoring Links (multiple agencies worldwide): https://sincedutch.wordpress.com/2011/11/30/11302011-list-of-earthquake-links-for-global-monitoring/ USGS main earthquake reporting

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ENTRA EN ERUPCION EL VOLCAN SINABUNG DE INDONESIA (VIDEO) 19/02/ 2018

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Indonesia ha activado este lunes la alerta roja por la entrada en erupción del volcán ubicado en el monte Sinabung, en la isla de Sumatra, que ha comenzado a emitir humo y cenizas en grandes cantidades poniendo en peligro la seguridad de los vuelos. Sigueme En Facebook;: https://www.facebook.com/ultimahorasucesosenelmundo/

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ENTRA EN ERUPCIÓN EL VOLCÁN DE LODO DE TRINIDAD Y TOBAGO (VIDEO) 2018

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El volcán de lodo Devil's Wood Yard, ubicado en la localidad de New Grant, en el sur de Trinidad y Tobago, entró este martes en erupción por primera vez desde 1882, obligando a las autoridades a socorrer a los residentes de la zona. Sigueme En Facebook:https://www.facebook.com/ultimahorasucesosenelmundo/O

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Volcan De Fuego De Guatemala Entra En Erupcion (Video) 2018

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El volcán de Fuego, ubicado entre los departamentos de Escuintla, Sacatepéquez y Chimaltenango y a unos 50 kilómetros al oeste de la capital de Guatemala, entró hoy en erupción, la primera del 2018, informó una fuente oficial. Sigueme En Facebook: https://www.facebook.com/ultimahorasucesosenelmundo/

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Indonesia Issues Volcanic Ash Flight Warnings After Mount Sinabung Erupts

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Areas around the crater of the volcano, located about 1,900km north-west of the capital, Jakarta, on the island of Sumatra have been off-limits for several years because of frequent volcanic activity. The Australian weather bureau's Volcanic Ash Advisory Centre (VACC), in the northern city of Darwin, issued maps on Monday showing the ash cloud spreading north, north-west and south-south-east.

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Advierten de Explosión destructiva en Volcán Chillán | @PepeEnVivo

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Las noticias al momento, videos todos los días y de lunes a viernes en vivo a las 7:00 pm el resumen de noticias. Los sucesos mas interesantes, lo mas trending en las redes sociales y el pronostico del clima, prevención de fenómenos naturales.

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Reporte del Popocatépetl de 134 exhalaciones | @PepeEnVivo

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Las noticias al momento, videos todos los días y de lunes a viernes en vivo a las 7:00 pm el resumen de noticias. Los sucesos mas interesantes, lo mas trending en las redes sociales y el pronostico del clima, prevención de fenómenos naturales.

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Alerta Roja por Volcán Sinabug | @PepeEnVivo

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Las noticias al momento, videos todos los días y de lunes a viernes en vivo a las 7:00 pm el resumen de noticias. Los sucesos mas interesantes, lo mas trending en las redes sociales y el pronostico del clima, prevención de fenómenos naturales.

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5 Mile High Indonesia Volcano Eruption Sumatra Mount Sinabung Stunning Footage 2018

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5 Mile High Indonesia Volcano Eruption Sumatra Mount Sinabung Stunning Footage 2018

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GSM Update 2/20/18 - Sinabung Explodes - Snow & Record Cold - Monolithic Domes

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Sinabung Eruption Covers Everything in Ash

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When Indonesia's Mount Sinabung volcano erupted on Monday morning, it shot a towering plume of ash 7km (4 miles) into the sky, blowing away much of its summit. Before and after images show an enormous chunk missing from the stratovolcano following its biggest eruption this year.

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Indonesia Issues Volcanic Ash Flight Warnings After Mount Sinabung Erupts

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Areas around the crater of the volcano, located about 1,900km north-west of the capital, Jakarta, on the island of Sumatra have been off-limits for several years because of frequent volcanic activity. The Australian weather bureau's Volcanic Ash Advisory Centre (VACC), in the northern city of Darwin, issued maps on Monday showing the ash cloud spreading north, north-west and south-south-east.

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Sinabung Eruption Signals Year without a Summer Cycle, Are you Prepared (534)

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The awakening of Sinabung among other volcanoes awakening on a multi century cycle, indicates that the grand solar minimum intensification of intense eruptions has begun. This latest eruption of Sinabung has sent ash 17KM/55,000ft into the atmosphere which reached the troposphere and will spread across Asia.

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Sinabung Eruption Signals Year without a Summer Cycle, Are you Prepared (534)

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The awakening of Sinabung among other volcanoes awakening on a multi century cycle, indicates that the grand solar minimum intensification of intense eruptions has begun. This latest eruption of Sinabung has sent ash 17KM/55,000ft into the atmosphere which reached the troposphere and will spread across Asia.

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GSM - New Global Temps, More Volcanoes Poppin off & More

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Check out http://www.thegrandsolarminimum.com Weather Tropicaltidbits.com Global temps updated troposhere http://www.drroyspencer.com/ https://watchers.news/2018/02/02/eruption-of-fuego-volcano-forces-school-closures-orange-alert-issued/ Guatemalan authorities issued an Orange Alert for Fuego volcano after its first eruption of the year on February 1, 2018. Explosions at the volcano lasted 20 hours, generating pyroclastic flows and a column of ash up to 6 500 m (21 325 feet) above sea level.

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Hualien Earthquake & Volcano News . -GSM

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LIKE THIS? SHARE!!!! Nearly 3,000 servicemen take part in Hualien quake relief EARTHQUAKE efforts http://focustaiwan.tw/news/asoc/201802130018.aspx UNDER WATER SUPER VOLCANO http://www.dailymail.co.uk/sciencetech/article-5384899/Lava-building-volcano-near-Japans-southerly-islands.html FOLLOW THE WATCHERS Mount Agung erupts ash 4.5 km a.s.l., Alert Level remains at 3 Mount Agung erupted at 03:49 UTC on February 13, 2018, ejecting a column of ash up to 4.5 km (15 000 feet) above sea level, that's 1.5 km (5 000 feet) above the crater.

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GSM Update!! Volcano Erupts Mount Sinabung

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North Sumatra's Mount Sinabung erupted again at around 9 a.m. sending towering column of ash 5 km high and pyroclastic cloud traveling 4.9 km south and 3.5 km east southeast. No casualties reported.

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The Watchers - Daily news service | Watchers.NEWS

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A high impact volcanic ash eruption started at Sinabung volcano, Indonesia at 01:53 UTC on Monday, February 19, 2018. Pyroclastic flows traveled 3.5 km (2.1 miles) and 4.9 km (3 miles) from the summit. Ash plume was reaching an altitude of 16.7 km (55 000 feet) above sea level, the Darwin VAAC reported 04:50 UTC. Aviation Color Code was raised from Orange to Red.
The eruption started at 01:53 UTC (08:53 local time) and lasted 4 minutes and 51 seconds, Sinabung Volcano Observatory reported.

Their best estimate of the ash cloud top at 02:13 UTC was 7.4 km (23 872 feet) above sea level. The observatory noted that the ash cloud is drifting to the east and southeast, adding that its top may be higher than what can be clearly observed from the ground. The Aviation Color Code was raised from Orange to Red.

"Pyroclastic flow is observed through the ESE slope to a distance of 3.5 km [2.1 miles] from the summit and through the south slope to a distance of 4.9 km [3 miles] from the summit," they said.

Major ashfall was reported around the volcano and visibility was down to only 5 to 10 meters (16 - 32 feet).

The volcanic ash cloud is reaching an altitude of 16.7 km (55 000 feet) above sea level and extending 46.3 km (28.7 miles) ENE, the Darwin VAAC reported 03:35 UTC. At the same time, the second volcanic ash cloud was reaching 7.6 km (25 000 feet) a.s.l. and extending 18.5 km (11.5 miles) S.

At 04:53 UTC, the Darwin VAAC said that one volcanic ash cloud was observed reaching an altitude of 13.7 km (45 000 feet) at 04:50 UTC and extending 138.9 km (86.3 miles) to the northwest, while the second volcanic ash cloud was reaching 6.7 km (22 000 feet) and extending 46.3 km (28.7 miles) to the south.

"High impact volcanic eruption is clearly observed on satellite imagery," they noted, adding that the 04:50 UTC volcanic ash cloud heights were estimated based on plume top IR temperature and 00:00 UTC February 19 Medan sounding.

Eruption of #Sinabung in #Indonesia - #Himawari true color pic.twitter.com/Yk6JVKNV3b
- Dan Lindsey (@DanLindsey77) February 19, 2018

Gunung Sinabung meletus besar pagi ini. pic.twitter.com/AoKkuaZCXY
- Sutopo Purwo Nugroho (@Sutopo_PN) February 19, 2018

VONA Gunung Sinabung dinaikkan RED terkait letusan Gunung Sinabung pagi ini. Tinggi kolom abu mencapai kurang lebih 5000 m disertai suara gemuruh dan disertai awan panas dengan jangkauan ke arah timur laut sejauh 3500 m dan ke arah selatan sejauh 4900 m. @BNPB_Indonesia pic.twitter.com/0Qe43IZYII
- Sutopo Purwo Nugroho (@Sutopo_PN) February 19, 2018

Gunung Sinabung meletus dengan tinggi kolom abu vulkanik 5 km dan disertai luncuran awan panas 3,5-4,9 km. Tidak ada korban jiwa. pic.twitter.com/cAz8VLWzUo
- Sutopo Purwo Nugroho (@Sutopo_PN) February 19, 2018

Anak SD berteriak dan takut melihat dahsyatnya letusan Gunung Sinabung pagi tadi. Awan panas dengan suhu 600-800 derajat celcius menuruni lereng sejau 4,9 km. #Sinabung #SinabungErupsi @RadioElshinta @BNPB_Indonesia #VisitWonderfulIndonesia pic.twitter.com/HFMkZuPGts
- Sutopo Purwo Nugroho (@Sutopo_PN) February 19, 2018

Kondisi desa payung pasca erupsi

Pagi rasa malam karna di selimuti debu langitnya
Pukul 10.00 wib tadi@infobencana pic.twitter.com/sHyRC1lvwc
- Nada Gultom (@siitulang) February 19, 2018

SINABUNG JAYA. Warga Desa Gurukinayan dievakuasi menggunakan angkutan pedesaan saat letusan dahsyat Gunung Sinabung pagi tadi. Tidak ada korban jiwa. Warga yang mengungsi telah kembali ke rumahnya. #Sinabung @RadioElshinta @BNPB_Indonesia #VisitWonderfulIndonesia pic.twitter.com/R3jyL57gZG
- Sutopo Purwo Nugroho (@Sutopo_PN) February 19, 2018

Tanaman tonat dan lahan pertanian tertutup abu vulkanik tebal pascaletusan Gunung Sinabung (19/2/2018). Petani mengalami kerugian akibat tanaman pertanian mati. Petani menjadi tambah miskin. #SinabungErupsi #Sinabung #volcano #volcan @BNPB_Indonesia pic.twitter.com/j3PmZacbib
- Sutopo Purwo Nugroho (@Sutopo_PN) February 19, 2018

The National Disaster Mitigation Agency said there are no reports of fatalities and injuries.

Sinabung's first eruption in known history took place in August 2010. It lasted about a month and had Volcanic Explosivity Index of 2.

Seismicity fluctuated until September 2013, when dense white plumes started rising 100 to 150 m (328 to 492 feet) above the crater.

Sinabung's first major eruption in known history occurred on September 17, 2013 and the volcano remains active ever since. Tens of thousands have been evacuated.

Between February 2014 and May 2016, eruptions at Mount Sinabung claimed lives of 23 people.

Geological summary

Gunung Sinabung is a Pleistocene-to-Holocene stratovolcano with many lava flows on its flanks. The migration of summit vents along a N-S line gives the summit crater complex an elongated form. The youngest crater of this conical, 2 460-m-high (8 070 feet) andesitic-to-dacitic volcano is at the southern end of the four overlapping summit craters.

An unconfirmed eruption was noted in 1881, and solfataric activity was seen at the summit and upper flanks in 1912.

No confirmed historical eruptions were recorded prior to explosive eruptions during August - September 2010 that produced ash plumes to 5 km (16 404 feet) above the summit. (GVP)

Featured image: Eruption of Mount Sinabung on February 19, 2018. Credit: Polres Tanah Karo, Kabanjahe

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Massive eruption at Sinabung volcano, ash to 16.7 km (55 000 feet) a.s.l.

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A high impact volcanic ash eruption started at Sinabung volcano, Indonesia at 01:53 UTC on Monday, February 19, 2018. Pyroclastic flows traveled 3.5 km (2.1 miles) and 4.9 km (3 miles) from the summit. Ash plume was reaching an altitude of 16.7 km (5...

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The Watchers - Daily news service | Watchers.NEWS

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An intense earthquake swarm is taking place at Tjörnes Fracture Zone volcano near Grimsey island, Iceland over the past 7 days. More than 1 100 of earthquakes were detected in this region since Wednesday, February 14, 2018. The last known eruption of this submarine volcano was in 1868.
The largest earthquake so far was M4.1 at 19:37 UTC on February 15, about 10 km (6.2 miles) ENE of Grimsey. "It is the largest earthquake detected in the seismic swarm that began a week ago and is still ongoing," the Icelandic Met Office said late Thursday. EMSC registered this quake as M3.7 at a depth of 14 km (8.7 miles).

A magnitude 3.2 earthquake occurred at 19:28 UTC in the same area, followed by two events above M3, at 19:38 and 19:39 UTC.

There are no signs of volcanic unrest, IMO said. "This area is part of the Tjörnes Fracture Zone and earthquake swarms are common in the area."

More earthquakes, even bigger, cannot be ruled out, the agency added.

A total of 1 165 earthquakes were detected since 08:56 UTC on February 14. 11 of them had magnitudes above 3, 162 between 2 and 3, 951 between 1 and 2 and 41 less than 1.

Tjörnes fracture zone earthquakes February 14 - 16, 2018. Credit: IMO

Regional seismicity

Geological summary

The offshore Tjörnes Fracture Zone is an oblique transform zone that separates the northern volcanic zone of Iceland from the Kolbeinsey Ridge, part of the Mid-Atlantic Ridge north of Iceland.

A submarine eruption was reported during 1867-1868 at the SE part of the fissure system off the northern coast of Iceland along the Manareyjar Ridge immediately north of Manareyjar Island.

Featured image: Location of earthquakes at Tjörnes fracture zone - February 2018. Credit: EMSC

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Intense earthquake swarm at Tjörnes Fracture Zone, Iceland

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An intense earthquake swarm is taking place at Tjörnes Fracture Zone volcano near Grimsey island, Iceland over the past 7 days. More than 1 100 of earthquakes were detected in this region since Wednesday, February 14, 2018. The last known erupti...

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2/20/18 Yellowstone, Lassen Peak Swarm w/ SO2, Mary Lake Weird Signals

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Parts: 00:07 - Lassen Peak Activity Increases 01:52 - Lassen Peak History 05:04 - SO2 Emissions extremely close to Lassen Peak 06:40 - Yellowstone Activity 07:58 - Strange Mary Lake Activity 09:36 - LKWY 10:38 - Conclusion http://bigthink.com/eruptions/eruptions-words-of-the-day-harmonic-tremor-and-tornillos Email: benferraiuolo@yahoo.com If anyone would like any seismic or uplift data from my new archive for a certain day or week, email me at benferraiuolo@yahoo.com.

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The Watchers - Daily news service | Watchers.NEWS

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A new seismic swarm started under Cumbre Vieja volcano (La Palma), the Canary Islands on February 10, 2018. Quakes in this latest swarm are stronger than those in the previous swarm in October 2017, the first swarm in this area in 30 years.
National Geographic Institute (IGN) registered a total of 83 earthquakes between 23:23 UTC, February 10 and 07:32 UTC, February 15 with magnitudes ranging from 1.6 to 2.6.

In addition, there have been several hundred more which weren't detected due to their magnitude and depth.

Cumbre Vieja earthquake swarm February 10 - 15, 2018. Credit: IGN

The depth of the quakes decreased during the course of the swarm, suggesting an upward movement of magma towards the surface.

The Canary Government called for an urgent meeting of the Scientific Committee for Evaluation and Monitoring of Volcanic Phenomena to discuss why the quakes are happening again and what might happen in the future. This is the second such meeting in four months.

INVOLCAN said that this new series is something expected based on geochemical measurements made in the Cumbre Vieja volcano.

La Palma, Canary Islands. Credit: CEDIDA

Geological summary

The 47-km-long (29 miles) wedge-shaped island of La Palma, the NW-most of the Canary Islands, is composed of two large volcanic centers. The older northern one is cut by the massive steep-walled Caldera Taburiente, one of several massive collapse scarps produced by edifice failure to the SW.

The younger Cumbre Vieja, the southern volcano, is one of the most active in the Canaries. The elongated volcano dates back to about 125 000 years ago and is oriented N-S. Eruptions during the past 7 000 years have originated from the abundant cinder cones and craters along the axis of Cumbre Vieja, producing fissure-fed lava flows that descend steeply to the sea.

Historical eruptions at La Palma, recorded since the 15 th century, have produced mild explosive activity and lava flows that damaged populated areas. The southern tip of the island is mantled by a broad lava field produced during the 1677-1678 eruption. Lava flows also reached the sea in 1585, 1646, 1712, 1949, and 1971. (GVP)

Featured image: Earthquake swarm under Cumbre Vieja volcano, La Palma, Canary Islands - February 2018. Credit: IGN

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Earthquake swarm under Cumbre Vieja volcano, Canary Islands

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A new seismic swarm started under Cumbre Vieja volcano (La Palma), the Canary Islands on February 10, 2018. Quakes in this latest swarm are stronger than those in the previous swarm in October 2017, the first swarm in this area in 30 years. National ...

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The Watchers - Daily news service | Watchers.NEWS

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A partial solar eclipse will be visible in parts of Chile, Argentina and Antarctica on February 15, 2018. The greatest eclipse will take place at 20:52 UTC.
The Moon will pass in front of the Sun today, creating a solar eclipse. However, the alignment will not be very exact, so the Moon will only partially cover the Sun, and nowhere on Earth will see a total eclipse.

This is the first solar eclipse of 2018, preceded two weeks earlier by a total lunar eclipse on January 31, 2018, and it occurs in Capricornus at the Moon's descending node.

This Southern Hemisphere event is visible from a wedge-shaped region in the Antarctic Ocean that includes 2/3 of Antarctica and southern South America.

The instant of greatest eclipse takes place on February 15, 2018 at 20:52 UTC, 4.3 days after the Moon reaches apogee. During the eclipse, the Sun is in the constellation Capricornus. The synodic month in which the eclipse takes place has a Brown Lunation Number of 1177.

This is a very deep partial eclipse with a magnitude of 0.5991, while Gamma has a value of -1.2116.

This event is the 17 th eclipse of Saros 150. The family will produce 22 partial eclipses, followed by 40 annular eclipses and ending with 9 more partials. The entire series of 69 eclipses spans the years 1729 through 2991.

Please remember that observing the Sun can be very dangerous if it is not done with the right equipment. Even partial solar eclipses can only be safely observed with a special solar filter or by looking at the Sun's reflection.

Useful links for this partial solar eclipse

Featured image credit: Dominic Ford

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Partial solar eclipse of February 15, 2018

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A partial solar eclipse will be visible in parts of Chile, Argentina and Antarctica on February 15, 2018. The greatest eclipse will take place at 20:52 UTC. The Moon will pass in front of the Sun today, creating a solar eclipse. However, the alignme...

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The Watchers - Daily news service | Watchers.NEWS

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New activity/unrest was reported for 3 volcanoes between February 7 and 13, 2018. During the same period, ongoing activity was reported for 15 volcanoes.
New activity/unrest: Fuego, Guatemala | Kadovar, Papua New Guinea | Mayon, Luzon (Philippines).

Ongoing activity: Agung, Bali (Indonesia) | Aira, Kyushu (Japan) | Ambae, Vanuatu | Bagana, Bougainville (Papua New Guinea) | Cleveland, Chuginadak Island (USA) | Dukono, Halmahera (Indonesia) | Ebeko, Paramushir Island (Russia) | Karymsky, Eastern Kamchatka (Russia) | Kilauea, Hawaiian Islands (USA) | Pacaya, Guatemala | Popocatepetl, Mexico | Sabancaya, Peru | Santa Maria, Guatemala | Sheveluch, Central Kamchatka (Russia) | Shishaldin, Fox Islands (USA).

The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian's Global Volcanism Program and the US Geological Survey's Volcano Hazards Program. Updated by 23:00 UTC every Wednesday, notices of volcanic activity posted are preliminary and subject to change as events are studied in more detail. This is not a comprehensive list of all of Earth's volcanoes erupting during the week. Carefully reviewed, detailed reports on various volcanoes are published monthly in the Bulletin of the Global Volcanism Network.

New Activity/Unrest

Fuego, Guatemala

INSIVUMEH reported that explosions at Fuego during 7-13 February generated ash plumes that rose as high as 1.5 km and drifted 10-12 km N, NW, SW, and S. Avalanches of material traveled down the Seca (W), Ceniza (SSW), and Taniluyá (SW) drainages on 12 February, and down the Las Lajas (SE) and Honda (E) drainages on 13 February. Ash fell in areas downwind on 13 February including Morelia (9 km SW) and Panimaché (8 km SW).

Geological summary: Volcán Fuego, one of Central America's most active volcanoes, is one of three large stratovolcanoes overlooking Guatemala's former capital, Antigua. The scarp of an older edifice, Meseta, lies between 3763-m-high Fuego and its twin volcano to the north, Acatenango. Construction of Meseta dates back to about 230,000 years and continued until the late Pleistocene or early Holocene. Collapse of Meseta may have produced the massive Escuintla debris-avalanche deposit, which extends about 50 km onto the Pacific coastal plain. Growth of the modern Fuego volcano followed, continuing the southward migration of volcanism that began at Acatenango. In contrast to the mostly andesitic Acatenango, eruptions at Fuego have become more mafic with time, and most historical activity has produced basaltic rocks. Frequent vigorous historical eruptions have been recorded since the onset of the Spanish era in 1524, and have produced major ashfalls, along with occasional pyroclastic flows and lava flows.

Kadovar, Papua New Guinea

RVO reported that on 9 February the lava dome at Kadovar's SE Coastal Vent collapsed, causing 5-6 minor tsunamis, less than 1 m high, observed by residents on Blup Blup's E and W coasts. The waves were reported at 1050, before the main collapse of the dome. In a 12 February report RVO noted that activity from Main Crater consisted of white plumes rising 20 m and drifting a few kilometers SE and weak nighttime crater incandescence.

Geological summary: The 2-km-wide island of Kadovar is the emergent summit of a Bismarck Sea stratovolcano of Holocene age. Kadovar is part of the Schouten Islands, and lies off the coast of New Guinea, about 25 km N of the mouth of the Sepik River. The village of Gewai is perched on the crater rim. A 365-m-high lava dome forming the high point of the andesitic volcano fills an arcuate landslide scarp that is open to the south, and submarine debris-avalanche deposits occur in that direction. Thick lava flows with columnar jointing forms low cliffs along the coast. The youthful island lacks fringing or offshore reefs. No certain historical eruptions are known; the latest activity was a period of heightened thermal phenomena in 1976.

Mayon, Luzon (Philippines)

PHIVOLCS reported that during 7-13 February activity at Mayon continued to be characterized daily by lava effusion from the summit crater, rockfalls, lava fountains, steam emissions, advancing lava flows on the flanks, and pyroclastic flows. Numerous rockfall events were generated from the front and margins of advancing lava flows. Lava fountaining was nearly continuous during 6-10 February, with around 290 lava-fountaining events recorded by the seismic network from 0557 on 5 February until around 0700 on 10 February. The events each lasted between 3 and 233 minutes, and were accompanied by rumbling sounds audible with a 10-km radius. Lava fountaining was sporadic during 11-13 February. Lava fountains during phases of both nearly continuous and sporadic activity rose as tall as 400 m, and produced steam plumes up to 2.5 km above the crater that drifted in multiple directions. Lava flows advanced to 3.3 km, 4.5 km, and 900 m in the Mi-isi (S), Bonga (SE), and Basud (E) drainages, respectively. Pyroclastic density currents traveled 4.2-4.6 km in the Mi-isi, Bonga, and Basud drainages. The Alert Level remained at 4 (on a 0-5 scale) and the public was warned to remain outside of the Danger Zone defined as an area within an 8-km radius.

Geological summary: Beautifully symmetrical Mayon volcano, which rises to 2462 m above the Albay Gulf, is the Philippines' most active volcano. The structurally simple volcano has steep upper slopes averaging 35-40 degrees that are capped by a small summit crater. Historical eruptions at this basaltic-andesitic volcano date back to 1616 and range from strombolian to basaltic plinian, with cyclical activity beginning with basaltic eruptions, followed by longer term andesitic lava flows. Eruptions occur predominately from the central conduit and have also produced lava flows that travel far down the flanks. Pyroclastic flows and mudflows have commonly swept down many of the approximately 40 ravines that radiate from the summit and have often devastated populated lowland areas. Mayon's most violent eruption, in 1814, killed more than 1200 people and devastated several towns.

Ongoing activity

Agung, Bali (Indonesia)

On 10 February PVMBG reported that activity at Agung had declined during the previous month or two leading the observatory to lower the Alert Level to 3 (on a scale of 1-4) and adjusted the exclusion zone to a 4-km radius. The report noted that the tallest eruption plume in January was 2.5 km above the crater rim, occurring on 19 January, and the last event on 24 January generated a plume that rose 1 km. The volume of erupted lava was an estimated 20 million cubic meters in December 2017, and had not significantly changed. Seismicity continued to fluctuate, though the number and magnitude of events had declined. Satellite data showed a decrease in thermal output reflective of a reduced lava flow rate. PVMBG warned that activity at Agung is still high and unstable; tiltmeter data showed low rates of inflation (GPS patterns were stable) and gas-emission data indicated magma movement at depth, though at a lower intensity compared to values measured at the end of November 2017. An event at 1149 on 13 February generated as ash plume that rose 1.5 km above the crater rim.

Geological summary: Symmetrical Agung stratovolcano, Bali's highest and most sacred mountain, towers over the eastern end of the island. The volcano, whose name means "Paramount," rises above the SE caldera rim of neighboring Batur volcano, and the northern and southern flanks extend to the coast. The summit area extends 1.5 km E-W, with the high point on the W and a steep-walled 800-m-wide crater on the E. The Pawon cone is located low on the SE flank. Only a few eruptions dating back to the early 19th century have been recorded in historical time. The 1963-64 eruption, one of the largest in the 20th century, produced voluminous ashfall along with devastating pyroclastic flows and lahars that caused extensive damage and many fatalities.

Aira, Kyushu (Japan)

JMA reported that very small events occurred at Minamidake crater (at Aira Caldera's Sakurajima volcano) during 7-9 February. Crater incandescence from the summit crater was visible during 8-10 February. An event at 2201 on 11 February generated a plume that rose 1 km above the crater rim. The Alert Level remained at 3 (on a 5-level scale).

Geological summary: The Aira caldera in the northern half of Kagoshima Bay contains the post-caldera Sakurajima volcano, one of Japan's most active. Eruption of the voluminous Ito pyroclastic flow accompanied formation of the 17 x 23 km caldera about 22,000 years ago. The smaller Wakamiko caldera was formed during the early Holocene in the NE corner of the Aira caldera, along with several post-caldera cones. The construction of Sakurajima began about 13,000 years ago on the southern rim of Aira caldera and built an island that was finally joined to the Osumi Peninsula during the major explosive and effusive eruption of 1914. Activity at the Kitadake summit cone ended about 4850 years ago, after which eruptions took place at Minamidake. Frequent historical eruptions, recorded since the 8th century, have deposited ash on Kagoshima, one of Kyushu's largest cities, located across Kagoshima Bay only 8 km from the summit. The largest historical eruption took place during 1471-76.

Ambae, Vanuatu

Based on satellite, pilot, and webcam observations, the Wellington VAAC reported that during 8-9 February ash plumes from Aoba rose to altitudes of 2.7-3 km (9,000-10,000 ft) a.s.l. and drifted N and E.

Geological summary: Ambae, also known as Aoba, is a massive 2500 km3 basaltic shield that is the most voluminous volcano of the New Hebrides archipelago. A pronounced NE-SW-trending rift zone dotted with scoria cones gives the 16 x 38 km island an elongated form. A broad pyroclastic cone containing three crater lakes is located at the summit within the youngest of at least two nested calderas, the largest of which is 6 km in diameter. Post-caldera explosive eruptions formed the summit craters of Lake Voui (also spelled Vui) and Lake Manaro Ngoru about 360 years ago. A tuff cone was constructed within Lake Voui about 60 years later. The latest known flank eruption, about 300 years ago, destroyed the population of the Nduindui area near the western coast.

Bagana, Bougainville (Papua New Guinea)

Based on analyses of satellite imagery and model data, the Darwin VAAC reported that during 7-8 February ash plumes from Bagana rose to an altitude of 2.4 km (8,000 ft) a.s.l. and drifted NE.

Geological summary: Bagana volcano, occupying a remote portion of central Bougainville Island, is one of Melanesia's youngest and most active volcanoes. This massive symmetrical cone was largely constructed by an accumulation of viscous andesitic lava flows. The entire edifice could have been constructed in about 300 years at its present rate of lava production. Eruptive activity is frequent and characterized by non-explosive effusion of viscous lava that maintains a small lava dome in the summit crater, although explosive activity occasionally producing pyroclastic flows also occurs. Lava flows form dramatic, freshly preserved tongue-shaped lobes up to 50 m thick with prominent levees that descend the flanks on all sides.

Cleveland, Chuginadak Island (USA)
52.825°N, 169.944°W, Summit elev. 1730 m
AVO reported that there was no evidence of significant activity at Cleveland since the last explosion was detected on 18 December 2017. The Aviation Color Code was lowered to Yellow and the Volcano Alert Level was lowered to Advisory. AVO noted that low-level unrest continued.

Geological summary: Beautifully symmetrical Mount Cleveland stratovolcano is situated at the western end of the uninhabited, dumbbell-shaped Chuginadak Island. It lies SE across Carlisle Pass strait from Carlisle volcano and NE across Chuginadak Pass strait from Herbert volcano. Cleveland is joined to the rest of Chuginadak Island by a low isthmus. The 1730-m-high Mount Cleveland is the highest of the Islands of the Four Mountains group and is one of the most active of the Aleutian Islands. The native name for Mount Cleveland, Chuginadak, refers to the Aleut goddess of fire, who was thought to reside on the volcano. Numerous large lava flows descend the steep-sided flanks. It is possible that some 18th-to-19th century eruptions attributed to Carlisle should be ascribed to Cleveland (Miller et al., 1998). In 1944 Cleveland produced the only known fatality from an Aleutian eruption. Recent eruptions have been characterized by short-lived explosive ash emissions, at times accompanied by lava fountaining and lava flows down the flanks.

Dukono, Halmahera (Indonesia)

Based on analyses of satellite imagery, wind model data, and notices from PVMBG, the Darwin VAAC reported that during 7-13 February ash plumes from Dukono rose to altitudes of 1.8-2.1 km (6,000-7,000 ft) a.s.l. and drifted NE, E, and SE.

Geological summary: Reports from this remote volcano in northernmost Halmahera are rare, but Dukono has been one of Indonesia's most active volcanoes. More-or-less continuous explosive eruptions, sometimes accompanied by lava flows, occurred from 1933 until at least the mid-1990s, when routine observations were curtailed. During a major eruption in 1550, a lava flow filled in the strait between Halmahera and the north-flank cone of Gunung Mamuya. This complex volcano presents a broad, low profile with multiple summit peaks and overlapping craters. Malupang Wariang, 1 km SW of the summit crater complex, contains a 700 x 570 m crater that has also been active during historical time.

Ebeko, Paramushir Island (Russia)

Based on observations by volcanologists in Severo-Kurilsk (Paramushir Island), about 7 km E of Ebeko, explosions during 5-8 February generated ash plumes that rose as high as 2.4 km (7,900 ft) a.s.l. Ash fell in Severo-Kurilsk on 8 February. The Aviation Color Code remained at Orange (the second highest level on a four-color scale).

Geological summary: The flat-topped summit of the central cone of Ebeko volcano, one of the most active in the Kuril Islands, occupies the northern end of Paramushir Island. Three summit craters located along a SSW-NNE line form Ebeko volcano proper, at the northern end of a complex of five volcanic cones. Blocky lava flows extend west from Ebeko and SE from the neighboring Nezametnyi cone. The eastern part of the southern crater contains strong solfataras and a large boiling spring. The central crater is filled by a lake about 20 m deep whose shores are lined with steaming solfataras; the northern crater lies across a narrow, low barrier from the central crater and contains a small, cold crescentic lake. Historical activity, recorded since the late-18th century, has been restricted to small-to-moderate explosive eruptions from the summit craters. Intense fumarolic activity occurs in the summit craters, on the outer flanks of the cone, and in lateral explosion craters.

Karymsky, Eastern Kamchatka (Russia)

KVERT reported that a thermal anomaly over Karymsky was identified in satellite images on 3 February. The Aviation Color Code remained at Orange (the second highest level on a four-color scale).

Geological summary: Karymsky, the most active volcano of Kamchatka's eastern volcanic zone, is a symmetrical stratovolcano constructed within a 5-km-wide caldera that formed during the early Holocene. The caldera cuts the south side of the Pleistocene Dvor volcano and is located outside the north margin of the large mid-Pleistocene Polovinka caldera, which contains the smaller Akademia Nauk and Odnoboky calderas. Most seismicity preceding Karymsky eruptions originated beneath Akademia Nauk caldera, located immediately south. The caldera enclosing Karymsky formed about 7600-7700 radiocarbon years ago; construction of the stratovolcano began about 2000 years later. The latest eruptive period began about 500 years ago, following a 2300-year quiescence. Much of the cone is mantled by lava flows less than 200 years old. Historical eruptions have been vulcanian or vulcanian-strombolian with moderate explosive activity and occasional lava flows from the summit crater.

Kilauea, Hawaiian Islands (USA)
19.421°N, 155.287°W, Summit elev. 1222 m
During 7-13 February HVO reported that the lava lake continued to rise, fall, and spatter in Kilauea's Overlook crater. Webcams recorded incandescence from a small lava pond in a pit on the W side of Pu'u 'O'o Crater. Surface lava flows were active above and on the pali, and on the coastal plain.

Geological summary: Kilauea volcano, which overlaps the east flank of the massive Mauna Loa shield volcano, has been Hawaii's most active volcano during historical time. Eruptions are prominent in Polynesian legends; written documentation extending back to only 1820 records frequent summit and flank lava flow eruptions that were interspersed with periods of long-term lava lake activity that lasted until 1924 at Halemaumau crater, within the summit caldera. The 3 x 5 km caldera was formed in several stages about 1500 years ago and during the 18th century; eruptions have also originated from the lengthy East and SW rift zones, which extend to the sea on both sides of the volcano. About 90% of the surface of the basaltic shield volcano is formed of lava flows less than about 1100 years old; 70% of the volcano's surface is younger than 600 years. A long-term eruption from the East rift zone that began in 1983 has produced lava flows covering more than 100 sq km, destroying nearly 200 houses and adding new coastline to the island.

Pacaya, Guatemala

INSIVUMEH reported that during 7-13 February Strombolian explosions at Pacaya's Mackenney Crater ejected material 30 m above the main cone. Lava flows were at most 150 m long on the SW and W flanks.

Geological summary: Eruptions from Pacaya, one of Guatemala's most active volcanoes, are frequently visible from Guatemala City, the nation's capital. This complex basaltic volcano was constructed just outside the southern topographic rim of the 14 x 16 km Pleistocene Amatitlán caldera. A cluster of dacitic lava domes occupies the southern caldera floor. The post-caldera Pacaya massif includes the ancestral Pacaya Viejo and Cerro Grande stratovolcanoes and the currently active Mackenney stratovolcano. Collapse of Pacaya Viejo between 600 and 1500 years ago produced a debris-avalanche deposit that extends 25 km onto the Pacific coastal plain and left an arcuate somma rim inside which the modern Pacaya volcano (Mackenney cone) grew. A subsidiary crater, Cerro Chino, was constructed on the NW somma rim and was last active in the 19th century. During the past several decades, activity has consisted of frequent strombolian eruptions with intermittent lava flow extrusion that has partially filled in the caldera moat and armored the flanks of Mackenney cone, punctuated by occasional larger explosive eruptions that partially destroy the summit of the growing young stratovolcano.

Popocatepetl, Mexico

Each day during 7-13 February CENAPRED reported 25-101 emissions from Popocatépetl, with emissions during 11-13 February containing slight amounts of ash. Explosions were detected at 0130 and 2213 on 7 February, at 0457 on 8 February, at 1729 on 12 February, and at 0631 on 13 February. Minor crater incandescence was visible on the morning of 9 February, and at night during 11-12 February. The Alert Level remained at Yellow, Phase Two.

Geological summary: Volcán Popocatépetl, whose name is the Aztec word for smoking mountain, rises 70 km SE of Mexico City to form North America's 2nd-highest volcano. The glacier-clad stratovolcano contains a steep-walled, 400 x 600 m wide crater. The generally symmetrical volcano is modified by the sharp-peaked Ventorrillo on the NW, a remnant of an earlier volcano. At least three previous major cones were destroyed by gravitational failure during the Pleistocene, producing massive debris-avalanche deposits covering broad areas to the south. The modern volcano was constructed south of the late-Pleistocene to Holocene El Fraile cone. Three major Plinian eruptions, the most recent of which took place about 800 CE, have occurred since the mid-Holocene, accompanied by pyroclastic flows and voluminous lahars that swept basins below the volcano. Frequent historical eruptions, first recorded in Aztec codices, have occurred since Pre-Columbian time.

Sabancaya, Peru
15.787°S, 71.857°W, Summit elev. 5960 m
Observatorio Vulcanológico del Sur del IGP (OVS-IGP) and Observatorio Vulcanológico del INGEMMET (OVI) reported that explosive activity at Sabancaya was similar to the previous week; there was an average of 18 explosions recorded per day during 5-11 February. Seismicity was dominated by long-period events, with signals indicating emissions. Gas-and-ash plumes rose 3.9 km above the crater rim and drifted 50 km NW, SW, S, and SE. The MIROVA system detected three thermal anomalies. The sulfur dioxide flux was high, at 2,062 tons per day on 10 February. The report noted that the public should not to approach the crater within a 12-km radius.

Geological summary: Sabancaya, located in the saddle NE of Ampato and SE of Hualca Hualca volcanoes, is the youngest of these volcanic centers and the only one to have erupted in historical time. The oldest of the three, Nevado Hualca Hualca, is of probable late-Pliocene to early Pleistocene age. The name Sabancaya (meaning "tongue of fire" in the Quechua language) first appeared in records in 1595 CE, suggesting activity prior to that date. Holocene activity has consisted of Plinian eruptions followed by emission of voluminous andesitic and dacitic lava flows, which form an extensive apron around the volcano on all sides but the south. Records of historical eruptions date back to 1750.

Santa Maria, Guatemala

INSIVUMEH reported that explosions at Santa María's Santiaguito lava-dome complex, detected by the seismic network during 7-13 February, generated ash plumes that rose as high as 700 m and drifted SW. Avalanches of material descended the E and SE flanks of the lava dome. Ash fell on La Florida ranch (5 km S) on 10 February.

Geological summary: Symmetrical, forest-covered Santa María volcano is one of the most prominent of a chain of large stratovolcanoes that rises dramatically above the Pacific coastal plain of Guatemala. The 3772-m-high stratovolcano has a sharp-topped, conical profile that is cut on the SW flank by a large, 1.5-km-wide crater. The oval-shaped crater extends from just below the summit to the lower flank and was formed during a catastrophic eruption in 1902. The renowned plinian eruption of 1902 that devastated much of SW Guatemala followed a long repose period after construction of the large basaltic-andesite stratovolcano. The massive dacitic Santiaguito lava-dome complex has been growing at the base of the 1902 crater since 1922. Compound dome growth at Santiaguito has occurred episodically from four westward-younging vents, the most recent of which is Caliente. Dome growth has been accompanied by almost continuous minor explosions, with periodic lava extrusion, larger explosions, pyroclastic flows, and lahars.

Sheveluch, Central Kamchatka (Russia)

KVERT reported that a thermal anomaly over Sheveluch was identified in satellite images during 1-4 and 7 February. The Aviation Color Code remained at Orange.

Geological summary: The high, isolated massif of Sheveluch volcano (also spelled Shiveluch) rises above the lowlands NNE of the Kliuchevskaya volcano group. The 1300 cu km volcano is one of Kamchatka's largest and most active volcanic structures. The summit of roughly 65,000-year-old Stary Shiveluch is truncated by a broad 9-km-wide late-Pleistocene caldera breached to the south. Many lava domes dot its outer flanks. The Molodoy Shiveluch lava dome complex was constructed during the Holocene within the large horseshoe-shaped caldera; Holocene lava dome extrusion also took place on the flanks of Stary Shiveluch. At least 60 large eruptions have occurred during the Holocene, making it the most vigorous andesitic volcano of the Kuril-Kamchatka arc. Widespread tephra layers from these eruptions have provided valuable time markers for dating volcanic events in Kamchatka. Frequent collapses of dome complexes, most recently in 1964, have produced debris avalanches whose deposits cover much of the floor of the breached caldera.

Shishaldin, Fox Islands (USA)
54.756°N, 163.97°W, Summit elev. 2857 m
On 7 February AVO reported that seismic and infrasound activity from Shishaldin declined to background levels during the previous month, prompting the observatory to lower the Aviation Color Code to Green and the Volcano Alert Level to Normal.

Geological summary: The beautifully symmetrical volcano of Shishaldin is the highest and one of the most active volcanoes of the Aleutian Islands. The 2857-m-high, glacier-covered volcano is the westernmost of three large stratovolcanoes along an E-W line in the eastern half of Unimak Island. The Aleuts named the volcano Sisquk, meaning "mountain which points the way when I am lost." A steady steam plume rises from its small summit crater. Constructed atop an older glacially dissected volcano, it is Holocene in age and largely basaltic in composition. Remnants of an older ancestral volcano are exposed on the west and NE sides at 1500-1800 m elevation. There are over two dozen pyroclastic cones on its NW flank, which is blanketed by massive aa lava flows. Frequent explosive activity, primarily consisting of strombolian ash eruptions from the small summit crater, but sometimes producing lava flows, has been recorded since the 18th century.

Source: GVP

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The Weekly Volcanic Activity Report: February 7 - 13, 2018

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New activity/unrest was reported for 3 volcanoes between February 7 and 13, 2018. During the same period, ongoing activity was reported for 15 volcanoes. New activity/unrest: Fuego, Guatemala | Kadovar, Papua New Guinea | Mayon, Luzon (Philippines).

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The Watchers - Daily news service | Watchers.NEWS

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A long-duration C1.5 solar flare erupted from geoeffective Active Region 2699 on February 12, 2018. The event started at 00:15, peaked at 01:35 and ended at 03:21 UTC. A G1 - Minor geomagnetic storm watch is in effect for February 15.
This event produced an asymmetric halo Coronal Mass Ejection (CME), first observed in SOHO/LASCO C2 imagery at 01:25 UTC.

WSA/ENLIL model analysis of this event indicates a glancing blow late February 14 to early February 15. Current background solar wind speeds are slower than routine model predictions, so the forecast arrival timing of the CME has been slowed from the WSA-Enlil CME model run prediction.

A G1 - Minor geomagnetic storm watch is now in effect for February 15, 2018, in response associated with the arrival of this CME.

There is a chance for C-class flares with a slight chance for an isolated M-class flare (15%) over the next three days due to the flare potential of Region 2699.

Sunspots on February 13, 2018. Credit: ESA PROBA2/SWAP

A glancing blow from the February 12 th CME combined with Co-Rotating Interaction Region (CIR) effects in advance of a negative polarity CH HSS is expected to arrive late February 14 through early February 15. Active levels are expected late on February 14 with unsettled to G1 - Minor storm levels likely on February 15.

Featured image credit: C1.5 solar flare on February 12, 2018. Credit: NASA SDO/AIA

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Long-duration C1.5 solar flare produced Earth-directed CME

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A long-duration C1.5 solar flare erupted from geoeffective Active Region 2699 on February 12, 2018. The event started at 00:15, peaked at 01:35 and ended at 03:21 UTC. A G1 - Minor geomagnetic storm watch is in effect for February 15. This event prod...

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The Watchers - Daily news service | Watchers.NEWS

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Mount Agung erupted at 03:49 UTC on February 13, 2018, ejecting a column of ash up to 4.5 km (15 000 feet) above sea level, that's 1.5 km (5 000 feet) above the crater. The eruption comes two days after authorities lowered Alert Level from 4 to 3, the second highest.
At this point, ash is not affecting flights in Bali and the Aviation Color Code remains at Orange.

Seismic activity under the volcano is dominated by low-frequency earthquakes related to steam and gas emission on the crater. Some high-frequency volcanic earthquakes are still recorded, indicating that magma movement inside the volcano remains active, however with low intensity.

The eruption comes two days after authorities lowered Alert Level from 4 to 3, the second highest, as several indicators showed a drastic decrease in activity in the past month.

Gempa letusan Gunung Agung terjadi pada 13/2/2018 pukul 11:49 WITA dengan tinggi kolom asap dan abu 1500 meter di atas puncak. Status Siaga (level 3). Zona berbahaya di dalam radius 4 km dari puncak kawah. Sebanyak 15.445 orang masih mengungsi tersebar di 146 titik pengungsian. pic.twitter.com/g61LGDOV0f
- Sutopo Purwo Nugroho (@Sutopo_PN) February 13, 2018

Gempa letusan Gunung Agung terjadi pada 13/2/2018 pukul 11:49 WITA dengan tinggi kolom asap dan abu 1500 meter di atas puncak. Status Siaga (level 3). Zona berbahaya di dalam radius 4 km dari puncak kawah. Sebanyak 15.445 orang masih mengungsi tersebar di 146 titik pengungsian. pic.twitter.com/7Ga1oRofzu
- Sutopo Purwo Nugroho (@Sutopo_PN) February 13, 2018

More than 140 000 people living around Agung were evacuated after its alert level was raised to 4 on September 22, 2017. With the alert level now at 3, all villagers with homes outside of the 4 km (2.5 miles) radius can return.

"People's activities, as well as tourism in Bali, has been declared safe and there will be no more disruption related to the volcano at this time," Ignasius Jonan, the minister of energy and natural resources, said.

Earthquakes under Mount Agung, Bali, Indonesia from November 15 to February 7, 2018. Credit: MAGMA Indonesia

Geological summary

Symmetrical Agung stratovolcano, Bali's highest and most sacred mountain, towers over the eastern end of the island. The volcano, whose name means "Paramount," rises above the SE caldera rim of neighboring Batur volcano, and the northern and southern flanks of Agung extend to the coast.

The 3142-m-high (10 308 feet) summit contains a steep-walled, 500-m-wide (1 640 feet), 200-m-deep (656 feet) crater. The flank cone Pawon is located low on the SE side.

Only a few eruptions dating back to the early 19 th century have been recorded in historical time. The 1963-64 eruption, one of the world's largest of the 20 th century, produced voluminous ashfall along with devastating pyroclastic flows and lahars that caused extensive damage and many fatalities. (GVP)

Featured image: Mount Agung erupting on February 13, 2018. Credit: BNPB

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Mount Agung erupts ash 4.5 km a.s.l., Alert Level remains at 3

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Mount Agung erupted at 03:49 UTC on February 13, 2018, ejecting a column of ash up to 4.5 km (15 000 feet) above sea level, that's 1.5 km (5 000 feet) above the crater. The eruption comes two days after authorities lowered Alert Level from 4 to 3...

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The Watchers - Daily news service | Watchers.NEWS

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More than 100 earthquakes were registered under dormant Furnas volcano on the island of Sao Miguel, the Azores on February 11 and 12, 2018. The last eruption of this volcano was in 1630 (VEI 5). It was one of the largest Holocene explosive eruptions in the Azores and caused significant damage and fatalities.
The earthquake swarm, located between the lagoons of Fogo and Congro, started at 22:47 UTC on February 11 and counted more than 100 events over the next 6 hours.

It continued on February 12 with around 30 of them strong enough to be felt by the local population. The strongest registered was M3.1 at 07:18 UTC

The Azores Center for Seismovolcanic Information and Surveillance (CIVISA) reported at 18:30 UTC on February 12 that seismic activity in the central part of the island of Sao Miguel remains above reference values, although in the last hours it has been showing a decreasing trend.

At 09:00 UTC today, CIVISA said that seismic activity remains slightly above reference values, maintaining a downward trend, with occasional higher energy releases.

It is unclear at this time whether the earthquakes are seismic or volcanic in origin, indicating a possible reawakening of the volcanic system.

The last eruptive episode of this volcano started on September 3, 1630 and ended on November 2 of the same year. This was a powerful eruption with Volcanic Explosivity Index of 5 that caused significant damage and fatalities.

Geological summary

Furnas volcano lies at the eastern end of Sao Miguel Island, immediately west of the older Nordeste shield volcano and its Povoaçao caldera. It contains at least two calderas, a younger one that is 6-km (3.7 miles) wide and a larger older one that is less topographically distinct.

The eastern wall of the 500-m-deep (1 640 feet) caldera of Furnas overlaps the western wall of the Povoaçao caldera of Nordeste volcano.

Volcanic activity at Furnas dates back about 100 000 years. At least 11 trachytic pumice layers, all erupted during the past 5 000 years, post-date the caldera.

The most prominent post-caldera feature is the Pico do Gaspar lava dome, east of the Lagoa das Furnas caldera lake. A zone of late-Pleistocene to Holocene basaltic-to-trachytic cinder cones and lava domes is located between Furnas and Agua de Pau volcanoes.

Two historical eruptions have occurred at Furnas, one sometime between 1439 and 1443 and the other in 1630. The latter was one of the largest Holocene explosive eruptions in the Azores and caused significant damage and fatalities. (GVP)

Featured image: Earthquake swarm under Furnas volcano, Azores on February 12, 2018. Credit: Google, CIVISA

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Earthquake swarm under dormant Furnas volcano, Azores

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More than 100 earthquakes were registered under dormant Furnas volcano on the island of Sao Miguel, the Azores on February 11 and 12, 2018. The last eruption of this volcano was in 1630 (VEI 5). It was one of the largest Holocene explosive eruptions ...

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The Watchers - Daily news service | Watchers.NEWS

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A new volcanic activity is taking place at Devil's Woodyard mud volcano in Trinidad and Tobago. The last eruption of this volcano took place in 1995, killing 1 person and leaving 31 families homeless.
The first set of eruptions started at approximately 22:00 UTC on February 12. Another eruption took place at 00:20 UTC on February 13, followed by another at 04:52 UTC.

The volcano ejected thick volcanic mud and covered a large area, causing cracks in the ground and damage to concrete footpaths around the volcano. At the time, mud is extending some 45 m (150 feet) in each direction of the crater.

The Ministry of Rural Development and Local Government said that the alert level for the site is currently at level 1 - the lowest on its disaster management scale - which means the volcano is in a state where it poses no immediate danger to human life and there is so far no indication, based on seismic and other tests, that a hazardous eruption is imminent.

Level 1 alert is bolstered by the fact that air quality tests conducted by the Environmental Management Authority (EMA) at the New Grant site have so far returned normal results with only minimal traces of nitrogen dioxide detected, the ministry said.

At approximately 10:00 local time today (06:00 UTC), Hindustan Road in New Grant was temporarily closed to vehicular and pedestrian traffic except to people who live in the area. The police also put residents of some 25 homes with proximity to the mud volcano on notice should a full-scale evacuation become necessary.

In the event of an evacuation, the ministry and its partners at the regional corporation took a decision early today to activate and equip three shelters at the Hindustan Government Primary School, the Hindustan Presbyterian School and the Hindustan Community Centre, all of them well outside the 'hot zone.'

Disaster Management Unit, police and fire officers are on the site and are urging people not to approach the volcano.

"I understand that people are anxious to view the volcanic eruptions. However, at this time, I strongly urge all residents and citizens to avoid going to the site and allow the emergency first responders and Seismic personnel to do their work in order to get this situation under control and prevent any incidents," Acting Minister of Rural Development and Local Government said.

Devil's Woodyard in Piparo is the country's most famous mud volcano. Its last eruption took place in 1995 when thick mud buried 11 homes and 20 vehicles, triggering emergency response effort that lasted for weeks.

The area was declared a disaster area and some 300 residents were evacuated after the volcano ejected mud as high as 60 m (200 feet) into the air, killing some livestock, and knocking out the electricity and water supply. The eruption killed one person and left 31 families homeless.

The first known eruption of this volcano took place in 1852.

Featured image: Eruption of Devil's Woodyard mud volcano on February 13, 2018. Image credit: CNC3

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Devil's Woodyard mud volcano awakens after 23 years, Trinidad and Tobago

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A new volcanic activity is taking place at Devil's Woodyard mud volcano in Trinidad and Tobago. The last eruption of this volcano took place in 1995, killing 1 person and leaving 31 families homeless. The first set of eruptions started at approxi...

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The Watchers - Daily news service | Watchers.NEWS

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The Japan Meteorological Agency has raised the alert level of Ohachi volcano, a part of Kirishimayama complex in Kyushu, from Level 1 to Level 2 on Friday, February 9, 2018.
Volcanic earthquakes under Ohachi increased around 08:00 local time today, JMA said. At present, no remarkable change is observed using distant observation of the volcano and other observation data but volcanic activity under the volcano is clearly increasing and small eruptions may occur, it added.

The warning affects the area within 1 km (0.62 miles) from the crater and people are warned that this region should not be approached as it is not safe due to the possibility of ashfall and ballistic projectiles.

Ohachi volcano, Kyushu, Japan. Credit: Hydrographic and Oceanographic Department, Japan Coast Guard (JHOD)

Ohachi volcano, Kyushu, Japan. Credit: Hydrographic and Oceanographic Department, Japan Coast Guard (JHOD)

Ohachi volcano, Kyushu, Japan. Credit: Hydrographic and Oceanographic Department, Japan Coast Guard (JHOD)

The last time this volcano appeared in the GVP's Weekly Reports database was in January 2004:

Seismicity increased from 'normal' levels at Kirishima on December 13, 2013. On the same day, Dr. Kobayashi of Kagoshima University found new fumarole pits at the volcano's Ohachi Crater and a video camera at the volcano showed steam rising above the crater rim.

Observers saw two new pits that formed in the middle of the crater's southern inner wall and steam rising to ~100 m (328 feet). Also, pebbles (that were 2 - 3 cm / 0.8 - 1.2 inches across) and mud were scattered within about 10 m (32.8 feet) of these pits.

JMA issued a volcanic advisory on December 16, as the possibility of a small eruption had increased, judging from the high level of seismic and thermal activity.

On December 17, authorities announced that tourists were not permitted to visit Ohachi Crater. The level of seismicity peaked in mid-December, then declined somewhat, continuing at a relatively high level through at least mid-January 2004.

Geological summary

Kirishimayama is a large group of more than 20 Quaternary volcanoes located north of Kagoshima Bay. The late-Pleistocene to Holocene dominantly andesitic group consists of stratovolcanoes, pyroclastic cones, maars, and underlying shield volcanoes located over an area of 20 x 30 km (12.4 - 18.6 miles). The larger stratovolcanoes are scattered throughout the field, with the centrally located, 1700-m-high (5 577 feet) Karakunidake being the highest.

Onamiike and Miike, the two largest maars, are located SW of Karakunidake and at its far eastern end, respectively. Holocene eruptions have been concentrated along an E-W line of vents from Miike to Ohachi, and at Shinmoedake to the NE. Frequent small-to-moderate explosive eruptions have been recorded since the 8th century. (GVP)

Featured image: Ohachi volcano, Kyushu, Japan. Credit: Hydrographic and Oceanographic Department, Japan Coast Guard (JHOD)

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Ohachi volcano alert level raised after first activity since 2004

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The Japan Meteorological Agency has raised the alert level of Ohachi volcano, a part of Kirishimayama complex in Kyushu, from Level 1 to Level 2 on Friday, February 9, 2018. Volcanic earthquakes under Ohachi increased around 08:00 local time today, J...

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The Watchers - Daily news service | Watchers.NEWS

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The eruption of Mount Mayon in the Philippines continues with no sign of abating. Over the past 24 hours, the activity at the volcano was characterized by near continuous lava fountaining, lava flow and degassing from the summit crater.
Since 04:35 UTC on February 7, Mayon seismic network recorded 69 successive lava fountaining episodes. Discrete episodes lasted 3 to 233 minutes and were accompanied by rumbling and heaving sounds audible beyond 10 km (6.2 miles) of the summit crater.

Incandescent lava fountains 100 m (328 feet) tall generated steam-laden plumes that rose 800 m (2 624 feet) from the summit before drifting northeast. Throughout the night, lava flows and consequent incandescent rockfalls were observed in the Mi-isi and Bonga-Buyuan channels.

Effused volumes of incandescent lava flows have advanced to 3.3 km (2 miles), 4.5 km (2.8 miles) and 400 m (1 300 feet) down the Mi-isi, Bong and Basud gullies, respectively, from the summit crater.

Pyroclastic density currents or PDCs have deposited to the 4.6 km (2.8 miles), 4.5 km (2.8 miles) and 4.2 km (2.6 miles) reaches of the Mi-isi, Bonga and Basud Gullies, respectively.

A total of 54 volcanic earthquakes, most of which corresponded to lava fountaining events were recorded by Mayon's seismic monitoring network. Sulfur dioxide gas emission was measured at an average of 2 526 tonnes/day on February 7, 2018.

Electronic tilt and continuous GPS still record sustained swelling or inflation of the edifice since November and October 2017, consistent with pressurization by magmatic intrusion.

Mount Mayon eruption on February 9, 2018. Credit: PHIVOLCS

Mount Mayon eruption on February 9, 2018. Credit: PHIVOLCS

The total number of evacuated people stands at 87 452 as of February 7. 58 069 people are staying at evacuation shelters in 52 locations.

PHIVOLCS raised the Alert Level from 3 to 4 on January 22, foreseeing the possible large-scale eruptions, and this alert level is still in effect.

The public is strongly advised to be vigilant and desist from entering the 8 km (5 miles) radius danger zone, and be additionally vigilant against pyroclastic flows, lahars and sediment-laden stream flows along channels draining the edifice.

Featured image: Mount Mayon on February 9, 2018. Credit: PHIVOLCS

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Mayon eruption continues with no sign of abating, 87 452 people evacuated

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The eruption of Mount Mayon in the Philippines continues with no sign of abating. Over the past 24 hours, the activity at the volcano was characterized by near continuous lava fountaining, lava flow and degassing from the summit crater. Since 04:35 ...

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The Watchers - Daily news service | Watchers.NEWS

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A magnitude 3.6 earthquake was registered within the caldera of Öræfajökull volcano in Iceland at 05:07 UTC on February 9, 2018 and was followed by 10 aftershocks. This volcano is on Yellow alert since November 17, 2017 when a new ice-cauldron formed within its caldera. The last eruptive episode of this volcano started in August 1727 and ended in May 1728.
Today's earthquake is the largest recorded in Öræfajökull since instrumentation in the area started in 1976, The Icelandic Met Office said. The earthquake occurred inside the caldera just southeast of the ice-cauldron, about 1 km (0.62 miles) in diameter, that formed in November last year. The depth seems to be confined in the first few kilometers of the crust."

Öræfajökull has been showing signs of unrest for over a year, IMO said, adding that two other earthquakes larger than M3 have been recorded since last fall - M3.5 on the October 3, 2017 and M3.1 on January 18, 2018.

Oraefajokull earthquakes on February 9, 2018. Credit: IMO

Oraefajokull earthquakes on February 9, 2018. Credit: IMO

No significant changes have been observed for the past weeks with other monitoring data, including deformation, hydrological and geochemical data available to the Icelandic Meteorological Office.

An overflight, to measure glacial surface will be done as soon as the weather condition allows, IMO said. This is important as it can reflect changes of the underlying geothermal system.

In addition, satellite images will be acquired in the next days to identify possible changes of the ice-surface.

No significant changes have been seen in the satellite images this year (last image required end of January).

The last eruptive episode of this volcano started on August 3, 1727, and ended on May 1, 1728 (± 30 days). It had Volcanic Explosivity Index of 4 (on a scale of 1 - 7) and was responsible for deaths of three people.

Before that, the volcano started erupting on June 5, 1362 (± 4 days) and stopped on October 15, 1362 (± 45 days). This one had Volcanic Explosivity Index of 5 and was Iceland's largest historical explosive eruption. The volcano ejected huge amounts of tephra and destroyed the district of Litla-Hérað by floods and tephra fall. More than 40 years passed before people again settled the area, which became known as Öræfi.

Geological summary

Öraefajökull, Iceland's highest peak, is a broad glacier-clad central volcano at the SE end of the Vatnajökull icecap. A 4 x 5 km (2.5 x 3 miles) subglacial caldera truncates the summit of the dominantly basaltic and rhyolitic volcano. The extensive summit icecap is drained through deep glacial valleys dissecting the SW-to-SE flanks. The largest-volume volcano in Iceland, 2119-m-high (6 962 feet) Öraefajökull was mostly constructed during Pleistocene glacial and interglacial periods.

Holocene activity has been dominated by explosive summit eruptions, although flank lava effusions have also occurred. A major silicic eruption in 1362 CE was Iceland's largest historical explosive eruption. It and another eruption during 1727-28 were accompanied by major jökulhlaups (glacier outburst floods) that caused property damage and fatalities. (GVP).

Featured image credit: IMO

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M3.6 earthquake hits Öræfajökull volcano, the largest on record

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A magnitude 3.6 earthquake was registered within the caldera of Öræfajökull volcano in Iceland at 05:07 UTC on February 9, 2018 and was followed by 10 aftershocks. This volcano is on Yellow alert since November 17, 2017 when a new ice...

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The Watchers - Daily news service | Watchers.NEWS

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New activity/unrest was reported for 5 volcanoes between January 31 and February 6, 2018. During the same period, ongoing activity was reported for 10 volcanoes.
New activity/unrest: Fuego, Guatemala | Kadovar, Papua New Guinea | Karangetang, Siau Island (Indonesia) | Mayon, Luzon (Philippines) | San Miguel, El Salvador.

Ongoing activity: Aira, Kyushu (Japan) | Cleveland, Chuginadak Island (USA) | Dukono, Halmahera (Indonesia) | Ebeko, Paramushir Island (Russia) | Karymsky, Eastern Kamchatka (Russia) | Kilauea, Hawaiian Islands (USA) | Nevados de Chillan, Chile | Sabancaya, Peru | Sheveluch, Central Kamchatka (Russia) | Turrialba, Costa Rica.

New activity/unrest

Fuego, Guatemala

INSIVUMEH reported that the first Strombolian eruption at Fuego in 2018 began on 31 January, after a thermal anomaly was detected in satellite images the day before. Explosions produced ash plumes that rose 1.5 km above the crater and drifted 20 km SW. Lava fountains rose 300-500 m, and fed lava flows that traveled 800 m W in the Seca (Santa Teresa) drainage and 600 m in Las Lajas (SE) and Honda (E) drainages. On 1 February the eruption style changed to Vulcanian. Pyroclastic flows mainly descended the Seca, Trinidad (S), Las Lajas, and Honda drainages. Ash plumes from explosions rose 3.2 km and drifted more than 60 km NE, SW, and W. Ashfall was recorded in areas downwind including Santa Sofía (12 km SW), Morelia (9 km SW), Panimaché I and II (8 km SW), El Porvenir (8 km ENE), Sangre de Cristo (8 km WSW), Finca Palo Verde, San Pedro Yepocapa (8 km NW), Ciudad Vieja (13.5 km NE), Antigua Guatemala (18 km NE), and W and SW Ciudad de Guatemala. CONRED reported that 2,880 people were evacuated. At 1630 INSIVUMEH noted that the Strombolian-Vulcanian eruption phase had finished, 20 hours after it had begun. Explosions continued, generating ash plumes that rose just under 1 km and drifted 15 km SW.

On 2 February there were 3-5 weak explosion recorded per hour, with ash plumes rising 750 m and drifting 5-8 km W, SW, and S. Shock waves and rumbling were noted, and the lava flows remained visible. During 4-5 February ash plumes from explosions (about 5 per hour) produced ash plumes that rose 700 m and drifted W and SW. Incandescent material was ejected 200 m above the crater, causing weak avalanches of material around the crater area and in some vegetated areas.

Geologic summary: Volcán Fuego, one of Central America's most active volcanoes, is one of three large stratovolcanoes overlooking Guatemala's former capital, Antigua. The scarp of an older edifice, Meseta, lies between 3763-m-high Fuego and its twin volcano to the north, Acatenango. Construction of Meseta dates back to about 230,000 years and continued until the late Pleistocene or early Holocene. Collapse of Meseta may have produced the massive Escuintla debris-avalanche deposit, which extends about 50 km onto the Pacific coastal plain. Growth of the modern Fuego volcano followed, continuing the southward migration of volcanism that began at Acatenango. In contrast to the mostly andesitic Acatenango, eruptions at Fuego have become more mafic with time, and most historical activity has produced basaltic rocks. Frequent vigorous historical eruptions have been recorded since the onset of the Spanish era in 1524, and have produced major ashfalls, along with occasional pyroclastic flows and lava flows.

Kadovar, Papua New Guinea

RVO reported that the eruption at Kadovar continued during 31 January-1 February at a low level. Sulfur dioxide emissions and seismicity had both decreased. Dense white vapor plumes rose 100 m from Main Crater and drifted SE. Continuous but dull glow emanated from the crater. The lava dome at the SE Coastal Vent continued to grow. A new lobe 20-30 m long grew out from the seaward side of the dome boundary, channeled by levees which had developed on the sides of the dome. White steam plumes rose 100 m above the island and drifted SE. At 1830 on 1 February a collapse of the N part of the dome produced a gray plume, vigorous steaming at the collapse site, and nighttime incandescence. The main part of the dome had bulged up, and a valley developed in between the dome and the island's flank.

Geologic summary: The 2-km-wide island of Kadovar is the emergent summit of a Bismarck Sea stratovolcano of Holocene age. Kadovar is part of the Schouten Islands, and lies off the coast of New Guinea, about 25 km N of the mouth of the Sepik River. The village of Gewai is perched on the crater rim. A 365-m-high lava dome forming the high point of the andesitic volcano fills an arcuate landslide scarp that is open to the south, and submarine debris-avalanche deposits occur in that direction. Thick lava flows with columnar jointing forms low cliffs along the coast. The youthful island lacks fringing or offshore reefs. No certain historical eruptions are known; the latest activity was a period of heightened thermal phenomena in 1976.

Karangetang, Siau Island (Indonesia)

In a VONA issued on 2 February, PVMBG reported an eruption at Karangetang, characterized by crater incandescence and an ash plume that rose 600 m. The Aviation Color Code was raised from Unassigned to Yellow.

Geologic summary: Karangetang (Api Siau) volcano lies at the northern end of the island of Siau, north of Sulawesi. The stratovolcano contains five summit craters along a N-S line. It is one of Indonesia's most active volcanoes, with more than 40 eruptions recorded since 1675 and many additional small eruptions that were not documented in the historical record (Catalog of Active Volcanoes of the World: Neumann van Padang, 1951). Twentieth-century eruptions have included frequent explosive activity sometimes accompanied by pyroclastic flows and lahars. Lava dome growth has occurred in the summit craters; collapse of lava flow fronts has also produced pyroclastic flows.

Mayon, Luzon (Philippines)

PHIVOLCS reported that during 31 January-6 February daily activity at Mayon continued to be characterized by lava effusion from the summit crater, rockfalls, pyroclastic flows (31 January-1 February), ash and steam emissions, advancing lava flows on the flanks, and weak and sporadic lava fountains. Numerous rockfall events were generated by the growing and collapsing summit lava dome and from the front and margins of advancing lava flows. On 31 January pyroclastic flows traveled as far as 2 km in the Mi-isi (S), Basud (E), and Bonga (SE) drainages. White-to-light-gray ash plumes generally rose to low heights, though five events generated ash plumes that rose as high as 1 km above the crater rim. An event on 2 February also produced an ash plume that rose 1 km. The first of two lava fountaining events on 4 February lasted sporadically for 114 minutes, generated an ash plume that rose 500 m, and produced booming sounds heard within a 10-km radius. During 5-6 February high volumes of effused lava extended the lava flows in the Mi-isi, Bonga-Buyuan, and Basud drainages to 3.2, 4.5, and 3 km, respectively. The Alert Level remained at 4 (on a 0-5 scale) and the public was warned to remain outside of the Danger Zone defined as an area within an 8-km radius.

Geologic summary: Beautifully symmetrical Mayon volcano, which rises to 2462 m above the Albay Gulf, is the Philippines' most active volcano. The structurally simple volcano has steep upper slopes averaging 35-40 degrees that are capped by a small summit crater. Historical eruptions at this basaltic-andesitic volcano date back to 1616 and range from strombolian to basaltic plinian, with cyclical activity beginning with basaltic eruptions, followed by longer term andesitic lava flows. Eruptions occur predominately from the central conduit and have also produced lava flows that travel far down the flanks. Pyroclastic flows and mudflows have commonly swept down many of the approximately 40 ravines that radiate from the summit and have often devastated populated lowland areas. Mayon's most violent eruption, in 1814, killed more than 1200 people and devastated several towns.

San Miguel, El Salvador

On 2 February SNET reported that seismicity at San Miguel was decreasing, along with a decrease in emissions. RSAM values fluctuating between 63 and 114 units; normal values are between 50 and 150. Small pulses of gas near the crater rim were visible.

Geologic summary: The symmetrical cone of San Miguel volcano, one of the most active in El Salvador, rises from near sea level to form one of the country's most prominent landmarks. The unvegetated summit rises above slopes draped with coffee plantations. A broad, deep crater complex that has been frequently modified by historical eruptions (recorded since the early 16th century) caps the truncated summit, also known locally as Chaparrastique. Radial fissures on the flanks of the basaltic-andesitic volcano have fed a series of historical lava flows, including several erupted during the 17th-19th centuries that reached beyond the base of the volcano on the N, NE, and SE sides. The SE-flank flows are the largest and form broad, sparsely vegetated lava fields crossed by highways and a railroad skirting the base of the volcano. The location of flank vents has migrated higher on the edifice during historical time, and the most recent activity has consisted of minor ash eruptions from the summit crater.

Ongoing activity

Aira, Kyushu (Japan)

JMA reported that very small events occurred at Minamidake crater (at Aira Caldera's Sakurajima volcano) on 1 and 3 February. Crater incandescence from the summit crater was visible during 2-3 February. The Alert Level remained at 3 (on a 5-level scale).

Geologic summary: The Aira caldera in the northern half of Kagoshima Bay contains the post-caldera Sakurajima volcano, one of Japan's most active. Eruption of the voluminous Ito pyroclastic flow accompanied formation of the 17 x 23 km caldera about 22,000 years ago. The smaller Wakamiko caldera was formed during the early Holocene in the NE corner of the Aira caldera, along with several post-caldera cones. The construction of Sakurajima began about 13,000 years ago on the southern rim of Aira caldera and built an island that was finally joined to the Osumi Peninsula during the major explosive and effusive eruption of 1914. Activity at the Kitadake summit cone ended about 4850 years ago, after which eruptions took place at Minamidake. Frequent historical eruptions, recorded since the 8th century, have deposited ash on Kagoshima, one of Kyushu's largest cities, located across Kagoshima Bay only 8 km from the summit. The largest historical eruption took place during 1471-76.

Cleveland, Chuginadak Island (USA)

AVO reported that unrest at Cleveland continued during 31 January-6 February, though nothing significant was detected in seismic or infrasound data. Moderately elevated surface temperatures were identified in satellite images during 30-31 January; cloudy weather prevented observations the rest of the week. The Aviation Color Code remained at Orange and the Volcano Alert Level remained at Watch.

Geologic summary: Beautifully symmetrical Mount Cleveland stratovolcano is situated at the western end of the uninhabited, dumbbell-shaped Chuginadak Island. It lies SE across Carlisle Pass strait from Carlisle volcano and NE across Chuginadak Pass strait from Herbert volcano. Cleveland is joined to the rest of Chuginadak Island by a low isthmus. The 1730-m-high Mount Cleveland is the highest of the Islands of the Four Mountains group and is one of the most active of the Aleutian Islands. The native name for Mount Cleveland, Chuginadak, refers to the Aleut goddess of fire, who was thought to reside on the volcano. Numerous large lava flows descend the steep-sided flanks. It is possible that some 18th-to-19th century eruptions attributed to Carlisle should be ascribed to Cleveland (Miller et al., 1998). In 1944 Cleveland produced the only known fatality from an Aleutian eruption. Recent eruptions have been characterized by short-lived explosive ash emissions, at times accompanied by lava fountaining and lava flows down the flanks.

Dukono, Halmahera (Indonesia)

Based on analyses of satellite imagery, wind model data, and notices from PVMBG, the Darwin VAAC reported that during 31 January-6 February ash plumes from Dukono rose to an altitude of 2.1 km (7,000 ft) a.s.l. and drifted NE, E, and ESE.

Geologic summary: Reports from this remote volcano in northernmost Halmahera are rare, but Dukono has been one of Indonesia's most active volcanoes. More-or-less continuous explosive eruptions, sometimes accompanied by lava flows, occurred from 1933 until at least the mid-1990s, when routine observations were curtailed. During a major eruption in 1550, a lava flow filled in the strait between Halmahera and the north-flank cone of Gunung Mamuya. This complex volcano presents a broad, low profile with multiple summit peaks and overlapping craters. Malupang Wariang, 1 km SW of the summit crater complex, contains a 700 x 570 m crater that has also been active during historical time.

Ebeko, Paramushir Island (Russia)

Based on observations by volcanologists in Severo-Kurilsk (Paramushir Island), about 7 km E of Ebeko, explosions during 26-27 and 29-31 January generated ash plumes that rose as high as 2.5 km (8,200 ft) a.s.l. Ash fell in Severo-Kurilsk on 29 January. The Aviation Color Code remained at Orange (the second highest level on a four-color scale).

Geologic summary: The flat-topped summit of the central cone of Ebeko volcano, one of the most active in the Kuril Islands, occupies the northern end of Paramushir Island. Three summit craters located along a SSW-NNE line form Ebeko volcano proper, at the northern end of a complex of five volcanic cones. Blocky lava flows extend west from Ebeko and SE from the neighboring Nezametnyi cone. The eastern part of the southern crater contains strong solfataras and a large boiling spring. The central crater is filled by a lake about 20 m deep whose shores are lined with steaming solfataras; the northern crater lies across a narrow, low barrier from the central crater and contains a small, cold crescentic lake. Historical activity, recorded since the late-18th century, has been restricted to small-to-moderate explosive eruptions from the summit craters. Intense fumarolic activity occurs in the summit craters, on the outer flanks of the cone, and in lateral explosion craters.

Karymsky, Eastern Kamchatka (Russia)

KVERT reported that an ash plume from Karymsky was identified in satellite images drifting 80 km NE on 27 January. The Aviation Color Code remained at Orange (the second highest level on a four-color scale).

Geologic summary: Karymsky, the most active volcano of Kamchatka's eastern volcanic zone, is a symmetrical stratovolcano constructed within a 5-km-wide caldera that formed during the early Holocene. The caldera cuts the south side of the Pleistocene Dvor volcano and is located outside the north margin of the large mid-Pleistocene Polovinka caldera, which contains the smaller Akademia Nauk and Odnoboky calderas. Most seismicity preceding Karymsky eruptions originated beneath Akademia Nauk caldera, located immediately south. The caldera enclosing Karymsky formed about 7600-7700 radiocarbon years ago; construction of the stratovolcano began about 2000 years later. The latest eruptive period began about 500 years ago, following a 2300-year quiescence. Much of the cone is mantled by lava flows less than 200 years old. Historical eruptions have been vulcanian or vulcanian-strombolian with moderate explosive activity and occasional lava flows from the summit crater.

Kilauea, Hawaiian Islands (USA)

During 31 January-6 February HVO reported that the lava lake continued to rise, fall, and spatter in Kilauea's Overlook crater. Webcams recorded incandescence from a small lava pond in a pit on the W side of Pu'u 'O'o Crater. Surface lava flows were active above and on the pali, and on the coastal plain.

Geologic summary: Kilauea volcano, which overlaps the east flank of the massive Mauna Loa shield volcano, has been Hawaii's most active volcano during historical time. Eruptions are prominent in Polynesian legends; written documentation extending back to only 1820 records frequent summit and flank lava flow eruptions that were interspersed with periods of long-term lava lake activity that lasted until 1924 at Halemaumau crater, within the summit caldera. The 3 x 5 km caldera was formed in several stages about 1500 years ago and during the 18th century; eruptions have also originated from the lengthy East and SW rift zones, which extend to the sea on both sides of the volcano. About 90% of the surface of the basaltic shield volcano is formed of lava flows less than about 1100 years old; 70% of the volcano's surface is younger than 600 years. A long-term eruption from the East rift zone that began in 1983 has produced lava flows covering more than 100 sq km, destroying nearly 200 houses and adding new coastline to the island.

Nevados de Chillan, Chile

Servicio Nacional de Geología and Minería (SERNAGEOMIN) Observatorio Volcanológico de Los Andes del Sur (OVDAS) reported that growth of the lava dome in Nevados de Chillán's Nicanor Crater was 2,540 m3/day, determined by photos taken during overflights on 23 and 31 January. The total volume of the lava dome was an estimated 106,700 m3. A small area of deposits from collapses of the dome walls was observed. Temperatures on the surface of the dome were 305 and 480 degrees Celsius, mainly from a crack which generated the explosions. A larger explosion from a possible partial dome collapse was recorded at 1202 on 2 February, generating a gas-and-ash plume that rose about 2.5 km above the crater rim. Shock waves from the explosion were reported in the community of Las Trancas (10 km) and at the Gran Hotel Termas de Chillan (5 km). Explosive activity continued through 6 February. The Alert Level remained at Yellow, the middle level on a three-color scale, and the public was reminded not to approach the craters within a 4-km radius.

Geologic summary: The compound volcano of Nevados de Chillán is one of the most active of the Central Andes. Three late-Pleistocene to Holocene stratovolcanoes were constructed along a NNW-SSE line within three nested Pleistocene calderas, which produced ignimbrite sheets extending more than 100 km into the Central Depression of Chile. The largest stratovolcano, dominantly andesitic, Cerro Blanco (Volcán Nevado), is located at the NW end of the group. Volcán Viejo (Volcán Chillán), which was the main active vent during the 17th-19th centuries, occupies the SE end. The new Volcán Nuevo lava-dome complex formed between 1906 and 1945 between the two volcanoes and grew to exceed Volcán Viejo in elevation. The Volcán Arrau dome complex was constructed SE of Volcán Nuevo between 1973 and 1986 and eventually exceeded its height.

Sabancaya, Peru

Observatorio Vulcanológico del Sur del IGP (OVS-IGP) and Observatorio Vulcanológico del INGEMMET (OVI) reported that explosive activity at Sabancaya decreased compared to the previous week; there was an average of 22 explosions recorded per day during 29 January-4 February. Seismicity was dominated by long-period events, with signals indicating emissions. Gas-and-ash plumes rose 3.5 km above the crater rim and drifted 50 km NW, SW, and S. The MIROVA system detected two thermal anomalies. The sulfur dioxide flux was high, at 3,388 tons per day on 31 January. The report noted that the public should not to approach the crater within a 12-km radius.

Geologic summary: Sabancaya, located in the saddle NE of Ampato and SE of Hualca Hualca volcanoes, is the youngest of these volcanic centers and the only one to have erupted in historical time. The oldest of the three, Nevado Hualca Hualca, is of probable late-Pliocene to early Pleistocene age. The name Sabancaya (meaning "tongue of fire" in the Quechua language) first appeared in records in 1595 CE, suggesting activity prior to that date. Holocene activity has consisted of Plinian eruptions followed by emission of voluminous andesitic and dacitic lava flows, which form an extensive apron around the volcano on all sides but the south. Records of historical eruptions date back to 1750.

Sheveluch, Central Kamchatka (Russia)

KVERT reported that a thermal anomaly over Sheveluch was identified in satellite images on 1 February. The Aviation Color Code remained at Orange.

Geologic summary: The high, isolated massif of Sheveluch volcano (also spelled Shiveluch) rises above the lowlands NNE of the Kliuchevskaya volcano group. The 1300 cu km volcano is one of Kamchatka's largest and most active volcanic structures. The summit of roughly 65,000-year-old Stary Shiveluch is truncated by a broad 9-km-wide late-Pleistocene caldera breached to the south. Many lava domes dot its outer flanks. The Molodoy Shiveluch lava dome complex was constructed during the Holocene within the large horseshoe-shaped caldera; Holocene lava dome extrusion also took place on the flanks of Stary Shiveluch. At least 60 large eruptions have occurred during the Holocene, making it the most vigorous andesitic volcano of the Kuril-Kamchatka arc. Widespread tephra layers from these eruptions have provided valuable time markers for dating volcanic events in Kamchatka. Frequent collapses of dome complexes, most recently in 1964, have produced debris avalanches whose deposits cover much of the floor of the breached caldera.

Turrialba, Costa Rica

OVSICORI-UNA reported that an event at Turrialba at 0830 on 5 February generated a plume that rose 200 m above the crater rim and drifted SW. An event at 0730 on 6 February generated an ash plume that rose 1 km and drifted SW. Ashfall was reported in Goicoechea and Heredia.

Geologic summary: Turrialba, the easternmost of Costa Rica's Holocene volcanoes, is a large vegetated basaltic-to-dacitic stratovolcano located across a broad saddle NE of Irazú volcano overlooking the city of Cartago. The massive 3340-m-high Turrialba is exceeded in height only by Irazú, covers an area of 500 sq km, and is one of Costa Rica's most voluminous volcanoes. Three well-defined craters occur at the upper SW end of a broad 800 x 2200 m summit depression that is breached to the NE. Most activity originated from the summit vent complex, but two pyroclastic cones are located on the SW flank. Five major explosive eruptions have occurred during the past 3500 years. A series of explosive eruptions during the 19th century were sometimes accompanied by pyroclastic flows. Fumarolic activity continues at the central and SW summit craters.

Source: GVP

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The Weekly Volcanic Activity Report: January 31 - February 6, 2018

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New activity/unrest was reported for 5 volcanoes between January 31 and February 6, 2018. During the same period, ongoing activity was reported for 10 volcanoes. New activity/unrest: Fuego, Guatemala | Kadovar, Papua New Guinea | Karangetang, Siau Island (Indonesia) | Mayon, Luzon (Philippines) | San Miguel, El Salvador.

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The Watchers - Daily news service | Watchers.NEWS

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A satellite image captured by NASA/USGS Landsat-8 on January 31, 2018 show a thermal anomaly present in the summit crater of Mount Michael volcano on Saunders Island, South Atlantic Ocean.
"The anomaly is clearly an indicator that some elevated activity has been taking place inside Mount Michael's crater," South Sandwich Islands Volcano Monitoring Blog reports.

"In my opinion, I believe some low-level strombolian activity has been occurring or at least a lava pool is present on the crater floor."

Thermal anomaly inside Mount Michael summit crater on January 31, 2018. Credit: NASA/USGS Landsat-8

Thermal anomaly inside Mount Michael summit crater on January 31, 2018. Credit: NASA/USGS Landsat-8

Satellite images acquired August 10 and 18 as well as October 4, 5 and 15, 2017 show what appear to be gas emissions originating from the volcano, but no eruption was confirmed.

Gas plume emanating from Mount Michael, Sounders volcano, the South Sandwich Islands on October 15, 2017. Credit: NASA Aqua/MODIS

The last entry in Smithsonian/USGS Global Volcanism Program's Weekly Reports database for this volcano was in October 2015. The MODVOLC thermal alert system detected thermal anomalies over Michael's summit crater during September 30 - October 7. Thermal alerts, however, started on August 28.

The previous entry was in October 2005. "The first MODVOLC alerts at Mount Michael since May 2003 recently began, indicating an increased level of activity in the island's summit crater (and presumed lava lake). The alerts occurred on October 3, 5, and 6."

Geological summary

Saunders Island is a volcanic structure consisting of a large central edifice intersected by two seamount chains, as shown by bathymetric mapping (Leat et al., 2013).

The young constructional Mount Michael stratovolcano dominates the glacier-covered island, while two submarine plateaus, Harpers Bank and Saunders Bank, extend north. The symmetrical Michael has a 500-m-wide (1 640 feet) summit crater and a remnant of a somma rim to the SE. Tephra layers visible in ice cliffs surrounding the island are evidence of recent eruptions.

Ash clouds were reported from the summit crater in 1819, and an effusive eruption was inferred to have occurred from a N-flank fissure around the end of the 19 th century and beginning of the 20 th century. A low ice-free lava platform, Blackstone Plain, is located on the north coast, surrounding a group of former sea stacks.

A cluster of parasitic cones on the SE flank, the Ashen Hills, appear to have been modified since 1820 (LeMasurier and Thomson, 1990). Vapor emission is frequently reported from the summit crater. Recent AVHRR and MODIS satellite imagery has revealed evidence for lava lake activity in the summit crater. (GVP)

Featured image: Thermal anomaly inside Mount Michael summit crater on January 31, 2018. Credit: NASA/USGS Landsat-8

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Thermal anomaly on Mount Michael, possible strombolian activity

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A satellite image captured by NASA/USGS Landsat-8 on January 31, 2018 show a thermal anomaly present in the summit crater of Mount Michael volcano on Saunders Island, South Atlantic Ocean. "The anomaly is clearly an indicator that some elevated ...

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The Watchers - Daily news service | Watchers.NEWS

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Guatemalan authorities issued an Orange Alert for Fuego volcano after its first eruption of the year on February 1, 2018. Explosions at the volcano lasted 20 hours, generating pyroclastic flows and a column of ash up to 6 500 m (21 325 feet) above sea level. Ash drifted up to 40 km (25 miles) to the west and southwest.
CONRED said the eruption affected 47 704 people in the departments of Sacatepéquez, Chimaltenango, Escuintla and Suchitepéquez.

Pyroclastic flows descended through the Honda, Santa Teresa, Las Lajas and Ceniza ravines with lengths between 700 and 1 500 meters (2 300 - 4 900 feet), INSIVUMEH reported.

Ashfall was recorded in the La Rochela and Ceylon communities in Escuintla, Escuintla; in the urban centers of Santa Lucia Cotzumalguapa and Siquinalá, Escuintla; San Pedro Yepocapa, Palo Verde Estate, Sangre de Cristo, Panimaché I and II, Santa Sofía, Morales and Yucales, in Yepocapa, Chimaltenango.

In addition, authorities closed the National Route 14 at kilometer 90 due to the advance of pyroclastic flows. The closure was a preventive measure.

Fuego RSAM January 31 - February 1m 2018. Credit: INSIVUMEH

Eruption of Fuego volcano on February 1, 2018. Credit: Phobos

Due to the increase in activity and the presence of ash, the education authorities of Sacatepéquez and Escuintla suspended all educational activities.

To provide a better response and coordination in the municipality, San Juan Alotenango, Sacatepéquez, declared Municipal Red Alert and activated the Municipal Emergency Operations Center, which identifies the places that could function as shelters.

The population living in the vicinity of the volcano is urged to comply with instructions issued by authorities and stay away from the ravines or places that could be affected by ballistic materials expelled from the crater.

In addition, precautionary measures must also be taken for ashfall, protecting the containers where water for human consumption is stored, covering eyes and respiratory passages in the presence of fine ash particles and reporting observed incidents at number 119 of the CONRED.

Geological summary

Volcán Fuego, one of Central America's most active volcanoes, is one of three large stratovolcanoes overlooking Guatemala's former capital, Antigua. The scarp of an older edifice, Meseta, lies between 3 763 m (12 345.8 feet) high Fuego and its twin volcano to the north, Acatenango. Construction of Meseta dates back to about 230 000 years and continued until the late Pleistocene or early Holocene. The collapse of Meseta may have produced the massive Escuintla debris-avalanche deposit, which extends about 50 km (31 miles) onto the Pacific coastal plain.

Growth of the modern Fuego volcano followed, continuing the southward migration of volcanism that began at Acatenango. In contrast to the mostly andesitic Acatenango, eruptions at Fuego have become more mafic with time, and most historical activity has produced basaltic rocks. Frequent vigorous historical eruptions have been recorded since the onset of the Spanish era in 1524, and have produced major ashfalls, along with occasional pyroclastic flows and lava flows.

Featured image: Eruption of Fuego volcano on February 1, 2018. Credit: Phobos

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Eruption of Fuego volcano forces school closures, Orange Alert issued

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Guatemalan authorities issued an Orange Alert for Fuego volcano after its first eruption of the year on February 1, 2018. Explosions at the volcano lasted 20 hours, generating pyroclastic flows and a column of ash up to 6 500 m (21 325 feet) above se...

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The Watchers - Daily news service | Watchers.NEWS

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New activity/unrest was reported for 5 volcanoes between January 24 and 30, 2018. During the same period, ongoing activity was reported for 12.
New activity/unrest: Kadovar, Papua New Guinea | Kusatsu-Shiranesan, Honshu (Japan) | Mayon, Luzon (Philippines) | San Miguel, El Salvador | Zaozan, Honshu (Japan).

Ongoing activity: Agung, Bali (Indonesia) | Aira, Kyushu (Japan) | Cleveland, Chuginadak Island (USA) | Ebeko, Paramushir Island (Russia) | Etna, Sicily (Italy) | Karymsky, Eastern Kamchatka (Russia) | Kilauea, Hawaiian Islands (USA) | Reventador, Ecuador | Sabancaya, Peru | Sheveluch, Central Kamchatka (Russia) | Sinabung, Indonesia | Turrialba, Costa Rica.
The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian's Global Volcanism Program and the US Geological Survey's Volcano Hazards Program. Updated by 23:00 UTC every Wednesday, notices of volcanic activity posted are preliminary and subject to change as events are studied in more detail. This is not a comprehensive list of all of Earth's volcanoes erupting during the week. Carefully reviewed, detailed reports on various volcanoes are published monthly in the Bulletin of the Global Volcanism Network.
New activity/unrest

Kadovar, Papua New Guinea
3.608°S, 144.588°E, Elevation 365 m
RVO reported that the eruption at Kadovar continued during 23-24 January at levels similar to the previous few days. Main Crater produced light-gray to brown ash plumes that rose at most 100 m and drifted a few tens of kilometers W. Weak incandescence from Main Crater was visible at night. The lava dome at the SE Coastal Vent continued to grow and was an estimated 50 m a.s.l. (the water depth in that area was unknown) and extends out from the coast 150-200 m. The dome glowed red at night. Seismicity was low to moderate, with one high-frequency event, and 12 significant numerous small low-frequency events. Strong sulfur dioxide emissions were detected.

Geological summary: The 2-km-wide island of Kadovar is the emergent summit of a Bismarck Sea stratovolcano of Holocene age. Kadovar is part of the Schouten Islands, and lies off the coast of New Guinea, about 25 km N of the mouth of the Sepik River. The village of Gewai is perched on the crater rim. A 365-m-high lava dome forming the high point of the andesitic volcano fills an arcuate landslide scarp that is open to the south, and submarine debris-avalanche deposits occur in that direction. Thick lava flows with columnar jointing forms low cliffs along the coast. The youthful island lacks fringing or offshore reefs. No certain historical eruptions are known; the latest activity was a period of heightened thermal phenomena in 1976.

Kusatsu-Shiranesan, Honshu (Japan)
36.618°N, 138.528°E, Elevation 2165 m
JMA reported that after the 23 January eruption near Motoshiranesan (the highest peak belonging to the Kusatsu-Shiranesan complex) seismicity, characterized by volcanic earthquakes and tremor, was elevated; it decreased the next day. Minor but elevated seismicity continued through 30 January, punctuated by periods of tremor. The eruption occurred from a fissure oriented E-W, located just inside the N rim of the northernmost Kagamiike Kitahi craters. JMA noted no juvenile material in the eruption deposits. The Alert Level remained at 3 (on a 5-level scale).

Geological summary: The summit of Kusatsu-Shiranesan volcano, located immediately north of Asama volcano, consists of a series of overlapping pyroclastic cones and three crater lakes. The andesitic-to-dacitic volcano was formed in three eruptive stages beginning in the early to mid Pleistocene. The Pleistocene Oshi pyroclastic flow produced extensive welded tuffs and non-welded pumice that covers much of the east, south and SW flanks. The latest eruptive stage began about 14,000 years ago. All historical eruptions have consisted of phreatic explosions from the acidic crater lakes or their margins. Fumaroles and hot springs that dot the flanks have strongly acidified many rivers draining from the volcano. The crater was the site of active sulfur mining for many years during the 19th and 20th centuries.

Mayon, Luzon (Philippines)
13.257°N, 123.685°E, Elevation 2462 m
PHIVOLCS reported that during 23-29 January there were 2-7 daily episodes of intense and sporadic lava fountaining at Mayon, each lasting 7-74 minutes. The lava fountains rose as high as 600 m above the crater rim, and fed flows in the Mi-isi and Bonga drainages and incandescent rockfalls on the summit area. Ash plumes rose 3-5 km above the crater. As many as three pyroclastic flows each day were detected by the seismic network, and had runout distances exceeding 5 km in the Buyuan drainage. Numerous rockfall events were generated by the growing and collapsing summit lava dome and traveled into the Bonga drainage, and from the front and margins of the advancing 3-km-long lava flow on the Mi-isi drainage. The Buyuan lava flow was 1 km long. Sulfur dioxide gas emissions were between 1,252 and 2,466 tonnes/day during 23-25 January. Heavy rain triggered lahars in the Binaan drainage during 28-29 January.

A cycle of energetic lava effusion with sporadic lava fountaining, and pyroclastic flows from lava-collapse events, occurred late on 29 January. The events were mostly visually obscured, and indicated by seismic data. The period began with a large-volume lava collapse at 1950 at the summit crater that generated pyroclastic flows in the Mi-isi and Bonga drainages. Lava fountaining was detected at 2016 and lasted eight minutes. This was followed by large-volume lava effusion that lasted 96 minutes, and was interspersed with sporadic lava fountaining and/or pyroclastic flows. Sporadic lava fountaining was visually and seismically detected until 2306, with lava fountains rising as high as 200 m. Ash plumes rose 1.5 km above the crater. Significant ashfall was reported in Camalig and Guinobatan, Albay before 2100, possibly resulting from the lava fountaining and pyroclastic flows.

Geological summary: Beautifully symmetrical Mayon volcano, which rises to 2462 m above the Albay Gulf, is the Philippines' most active volcano. The structurally simple volcano has steep upper slopes averaging 35-40 degrees that are capped by a small summit crater. Historical eruptions at this basaltic-andesitic volcano date back to 1616 and range from strombolian to basaltic plinian, with cyclical activity beginning with basaltic eruptions, followed by longer term andesitic lava flows. Eruptions occur predominately from the central conduit and have also produced lava flows that travel far down the flanks. Pyroclastic flows and mudflows have commonly swept down many of the approximately 40 ravines that radiate from the summit and have often devastated populated lowland areas. Mayon's most violent eruption, in 1814, killed more than 1200 people and devastated several towns.

San Miguel, El Salvador
13.434°N, 88.269°W, Elevation 2130 m
SNET reported that during 25-26 January seismic activity at San Miguel was slightly higher than normal, with RSAM values fluctuating between 75 and 179 units. Small pulses of gas near the crater rim were visible.

Geological summary: The symmetrical cone of San Miguel volcano, one of the most active in El Salvador, rises from near sea level to form one of the country's most prominent landmarks. The unvegetated summit rises above slopes draped with coffee plantations. A broad, deep crater complex that has been frequently modified by historical eruptions (recorded since the early 16th century) caps the truncated summit, also known locally as Chaparrastique. Radial fissures on the flanks of the basaltic-andesitic volcano have fed a series of historical lava flows, including several erupted during the 17th-19th centuries that reached beyond the base of the volcano on the N, NE, and SE sides. The SE-flank flows are the largest and form broad, sparsely vegetated lava fields crossed by highways and a railroad skirting the base of the volcano. The location of flank vents has migrated higher on the edifice during historical time, and the most recent activity has consisted of minor ash eruptions from the summit crater.

Zaozan, Honshu (Japan)
38.144°N, 140.44°E, Elevation 1841 m
JMA reported that tremor was detected at Zaozan on 28 and 30 January, and minor inflation at the S part of the volcano was recorded. There were 12 volcanic earthquakes detected on 31 January. JMA raised the Alert level to 2 (on a 5-level scale), noting the increased potential for a small eruption.

Geological summary: The Zaozan volcano group, the most active of northern Honshu, consists of a complex cluster of stratovolcanoes straddling the Pacific Ocean-Japan Sea divide. The Pleistocene Ryuzan volcano forms the western group (Nishi-Zao), and Byobu and Fubo volcanoes form the southern group (Minami-Zao). The complex was constructed over granitic basement rocks as high as 1500 m and thus has a relatively small volume. The 7 cu km Zaozan volcano proper forms the central group (Chuo-Zao), a volcanic complex topped by several lava domes and the Goshikidake tuff cone, aligned along a NW-SE trend. Several episodes of edifice collapse produced debris avalanches during the Pleistocene. Goshikidake contains the active Okama crater, filled with a colorful, strongly acidic crater lake (pH 1.3). It has been the source of most of the frequent historical eruptions, which date back to the 8th century CE.

Ongoing activity

Agung, Bali (Indonesia)
8.343°S, 115.508°E, Elevation 2997 m
PVMBG reported that white-and-gray plumes rose as high as 1 km above Agung's crater rim during 24-25 January. Foggy conditions prevented visual observations of the crater during 26-30 January. The Alert Level remained at 4 (on a scale of 1-4) and the exclusion zone continued at a 6-km radius.

Geological summary: Symmetrical Agung stratovolcano, Bali's highest and most sacred mountain, towers over the eastern end of the island. The volcano, whose name means "Paramount," rises above the SE caldera rim of neighboring Batur volcano, and the northern and southern flanks extend to the coast. The summit area extends 1.5 km E-W, with the high point on the W and a steep-walled 800-m-wide crater on the E. The Pawon cone is located low on the SE flank. Only a few eruptions dating back to the early 19th century have been recorded in historical time. The 1963-64 eruption, one of the largest in the 20th century, produced voluminous ashfall along with devastating pyroclastic flows and lahars that caused extensive damage and many fatalities.

Aira, Kyushu (Japan)
31.593°N, 130.657°E, Elevation 1117 m
JMA reported that very small events occurred at Minamidake crater (at Aira Caldera's Sakurajima volcano) during 22-29 January. Crater incandescence from the summit crater was visible during the morning of 29 January. The Alert Level remained at 3 (on a 5-level scale).

Geological summary: The Aira caldera in the northern half of Kagoshima Bay contains the post-caldera Sakurajima volcano, one of Japan's most active. Eruption of the voluminous Ito pyroclastic flow accompanied formation of the 17 x 23 km caldera about 22,000 years ago. The smaller Wakamiko caldera was formed during the early Holocene in the NE corner of the Aira caldera, along with several post-caldera cones. The construction of Sakurajima began about 13,000 years ago on the southern rim of Aira caldera and built an island that was finally joined to the Osumi Peninsula during the major explosive and effusive eruption of 1914. Activity at the Kitadake summit cone ended about 4850 years ago, after which eruptions took place at Minamidake. Frequent historical eruptions, recorded since the 8th century, have deposited ash on Kagoshima, one of Kyushu's largest cities, located across Kagoshima Bay only 8 km from the summit. The largest historical eruption took place during 1471-76.

Cleveland, Chuginadak Island (USA)
52.825°N, 169.944°W, Elevation 1730 m
AVO reported that unrest at Cleveland continued during 24-30 January. A possible cold vapor plume drifted S on 24 January. Slightly elevated surface temperatures were identified in satellite images a few times during 26-30 January. Nothing significant was detected in seismic or infrasound data. The Aviation Color Code remained at Orange and the Volcano Alert Level remained at Watch.

Geological summary: Beautifully symmetrical Mount Cleveland stratovolcano is situated at the western end of the uninhabited, dumbbell-shaped Chuginadak Island. It lies SE across Carlisle Pass strait from Carlisle volcano and NE across Chuginadak Pass strait from Herbert volcano. Cleveland is joined to the rest of Chuginadak Island by a low isthmus. The 1730-m-high Mount Cleveland is the highest of the Islands of the Four Mountains group and is one of the most active of the Aleutian Islands. The native name for Mount Cleveland, Chuginadak, refers to the Aleut goddess of fire, who was thought to reside on the volcano. Numerous large lava flows descend the steep-sided flanks. It is possible that some 18th-to-19th century eruptions attributed to Carlisle should be ascribed to Cleveland (Miller et al., 1998). In 1944 Cleveland produced the only known fatality from an Aleutian eruption. Recent eruptions have been characterized by short-lived explosive ash emissions, at times accompanied by lava fountaining and lava flows down the flanks.

Ebeko, Paramushir Island (Russia)
50.686°N, 156.014°E, Elevation 1103 m
Based on observations by volcanologists in Severo-Kurilsk (Paramushir Island), about 7 km E of Ebeko, explosions during 22-23 January generated ash plumes that rose as high as 2 km (6,600 ft) a.s.l. The Aviation Color Code remained at Orange (the second highest level on a four-color scale).

Geological summary: The flat-topped summit of the central cone of Ebeko volcano, one of the most active in the Kuril Islands, occupies the northern end of Paramushir Island. Three summit craters located along a SSW-NNE line form Ebeko volcano proper, at the northern end of a complex of five volcanic cones. Blocky lava flows extend west from Ebeko and SE from the neighboring Nezametnyi cone. The eastern part of the southern crater contains strong solfataras and a large boiling spring. The central crater is filled by a lake about 20 m deep whose shores are lined with steaming solfataras; the northern crater lies across a narrow, low barrier from the central crater and contains a small, cold crescentic lake. Historical activity, recorded since the late-18th century, has been restricted to small-to-moderate explosive eruptions from the summit craters. Intense fumarolic activity occurs in the summit craters, on the outer flanks of the cone, and in lateral explosion craters.

Etna, Sicily (Italy)
37.748°N, 14.999°E, Elevation 3295 m
INGV reported that activity at Etna during 22-28 January was relatively unchanged compared to the previous weeks and was mainly characterized by variable-intensity gas emissions from the summit craters. Weak and sporadic ash emissions rose from the New Southeast Crater (NSEC). On 22 January ash fell in areas on the S flank and also in Catania, though the crater which produced the ash emission was unknown due to poor visibility.

Geological summary: Mount Etna, towering above Catania, Sicily's second largest city, has one of the world's longest documented records of historical volcanism, dating back to 1500 BCE. Historical lava flows of basaltic composition cover much of the surface of this massive volcano, whose edifice is the highest and most voluminous in Italy. The Mongibello stratovolcano, truncated by several small calderas, was constructed during the late Pleistocene and Holocene over an older shield volcano. The most prominent morphological feature of Etna is the Valle del Bove, a 5 x 10 km horseshoe-shaped caldera open to the east. Two styles of eruptive activity typically occur, sometimes simultaneously. Persistent explosive eruptions, sometimes with minor lava emissions, take place from one or more summit craters. Flank vents, typically with higher effusion rates, are less frequently active and originate from fissures that open progressively downward from near the summit (usually accompanied by Strombolian eruptions at the upper end). Cinder cones are commonly constructed over the vents of lower-flank lava flows. Lava flows extend to the foot of the volcano on all sides and have reached the sea over a broad area on the SE flank.

Karymsky, Eastern Kamchatka (Russia)
54.049°N, 159.443°E, Elevation 1513 m
KVERT reported that a thermal anomaly over Karymsky was identified in satellite images on 19 and 23 January. Gas-and-steam plumes drifted 30 km NE and NW on 21 and 25 January, and an ash plume drifted about 100 km NE on 23 January. An explosion at 1430 on 27 January generated ash plumes that rose as high as 5.2 km (17,100 ft) a.s.l. and drifted 80 km NNE, prompting KVERT to raise the Aviation Color Code to Orange (the second highest level on a four-color scale).

Geological summary: Karymsky, the most active volcano of Kamchatka's eastern volcanic zone, is a symmetrical stratovolcano constructed within a 5-km-wide caldera that formed during the early Holocene. The caldera cuts the south side of the Pleistocene Dvor volcano and is located outside the north margin of the large mid-Pleistocene Polovinka caldera, which contains the smaller Akademia Nauk and Odnoboky calderas. Most seismicity preceding Karymsky eruptions originated beneath Akademia Nauk caldera, located immediately south. The caldera enclosing Karymsky formed about 7600-7700 radiocarbon years ago; construction of the stratovolcano began about 2000 years later. The latest eruptive period began about 500 years ago, following a 2300-year quiescence. Much of the cone is mantled by lava flows less than 200 years old. Historical eruptions have been vulcanian or vulcanian-strombolian with moderate explosive activity and occasional lava flows from the summit crater.

Kilauea, Hawaiian Islands (USA)
19.421°N, 155.287°W, Elevation 1222 m
During 24-30 January HVO reported that the lava lake continued to rise, fall, and spatter in Kilauea's Overlook crater; spattering was briefly visible from the visitor overlook on 27 and 29 January. Surface lava flows were active above and on the pali, and on the coastal plain.

Geological summary: Kilauea volcano, which overlaps the east flank of the massive Mauna Loa shield volcano, has been Hawaii's most active volcano during historical time. Eruptions are prominent in Polynesian legends; written documentation extending back to only 1820 records frequent summit and flank lava flow eruptions that were interspersed with periods of long-term lava lake activity that lasted until 1924 at Halemaumau crater, within the summit caldera. The 3 x 5 km caldera was formed in several stages about 1500 years ago and during the 18th century; eruptions have also originated from the lengthy East and SW rift zones, which extend to the sea on both sides of the volcano. About 90% of the surface of the basaltic shield volcano is formed of lava flows less than about 1100 years old; 70% of the volcano's surface is younger than 600 years. A long-term eruption from the East rift zone that began in 1983 has produced lava flows covering more than 100 sq km, destroying nearly 200 houses and adding new coastline to the island.

Reventador, Ecuador
0.077°S, 77.656°W, Elevation 3562 m
During 24-30 January IG reported a high level of seismic activity including explosions, long-period earthquakes, harmonic tremor, and signals indicating emissions at Reventador. Steam, gas, and ash plumes rose at around 600 m above the crater rim and drifted mainly W and sometimes N. Incandescent blocks rolled as far as 800 m down the E flank and 200 m down the S and SE flanks. Weather clouds sometimes prevented visual observations.

Geological summary: Reventador is the most frequently active of a chain of Ecuadorian volcanoes in the Cordillera Real, well east of the principal volcanic axis. The forested, dominantly andesitic Volcán El Reventador stratovolcano rises to 3562 m above the jungles of the western Amazon basin. A 4-km-wide caldera widely breached to the east was formed by edifice collapse and is partially filled by a young, unvegetated stratovolcano that rises about 1300 m above the caldera floor to a height comparable to the caldera rim. It has been the source of numerous lava flows as well as explosive eruptions that were visible from Quito in historical time. Frequent lahars in this region of heavy rainfall have constructed a debris plain on the eastern floor of the caldera. The largest historical eruption took place in 2002, producing a 17-km-high eruption column, pyroclastic flows that traveled up to 8 km, and lava flows from summit and flank vents.

Sabancaya, Peru
15.787°S, 71.857°W, Elevation 5960 m
Observatorio Vulcanológico del Sur del IGP (OVS-IGP) and Observatorio Vulcanológico del INGEMMET (OVI) reported that explosive activity at Sabancaya had decreased compared to the previous week; there was an average of 33 explosions recorded per day during 22-28 January. Seismicity was dominated by long-period events, with signals indicating emissions. Gas-and-ash plumes rose 3 km above the crater rim and drifted 50 km NW and SW. The MIROVA system detected five thermal anomalies. The sulfur dioxide flux was high, at 3,477 tons per day on 22 January. The report noted that the public should not to approach the crater within a 12-km radius.

Geological summary: Sabancaya, located in the saddle NE of Ampato and SE of Hualca Hualca volcanoes, is the youngest of these volcanic centers and the only one to have erupted in historical time. The oldest of the three, Nevado Hualca Hualca, is of probable late-Pliocene to early Pleistocene age. The name Sabancaya (meaning "tongue of fire" in the Quechua language) first appeared in records in 1595 CE, suggesting activity prior to that date. Holocene activity has consisted of Plinian eruptions followed by emission of voluminous andesitic and dacitic lava flows, which form an extensive apron around the volcano on all sides but the south. Records of historical eruptions date back to 1750.

Sheveluch, Central Kamchatka (Russia)
56.653°N, 161.36°E, Elevation 3283 m
KVERT reported that a thermal anomaly over Sheveluch was identified in satellite images on 19 and 23 January. The Aviation Color Code remained at Orange.

Geological summary: The high, isolated massif of Sheveluch volcano (also spelled Shiveluch) rises above the lowlands NNE of the Kliuchevskaya volcano group. The 1300 cu km volcano is one of Kamchatka's largest and most active volcanic structures. The summit of roughly 65,000-year-old Stary Shiveluch is truncated by a broad 9-km-wide late-Pleistocene caldera breached to the south. Many lava domes dot its outer flanks. The Molodoy Shiveluch lava dome complex was constructed during the Holocene within the large horseshoe-shaped caldera; Holocene lava dome extrusion also took place on the flanks of Stary Shiveluch. At least 60 large eruptions have occurred during the Holocene, making it the most vigorous andesitic volcano of the Kuril-Kamchatka arc. Widespread tephra layers from these eruptions have provided valuable time markers for dating volcanic events in Kamchatka. Frequent collapses of dome complexes, most recently in 1964, have produced debris avalanches whose deposits cover much of the floor of the breached caldera.

Sinabung, Indonesia
3.17°N, 98.392°E, Elevation 2460 m
PVMBG reported that ash plumes at Sinabung rose as high as 2.5 km above the crater during 24-30 January and drifted E, S, SW, and W. Avalanches of incandescent material traveled as far as 1.5 km down the ESE flank. A pyroclastic flow traveled 2.5 km down the ESE flank on 27 January. The Alert Level remained at 4 (on a scale of 1-4), with a general exclusion zone of 3 km and extensions of 7 km on the SSE sector, 6 km in the ESE sector, and 4 km in the NNE sector.

Geological summary: Gunung Sinabung is a Pleistocene-to-Holocene stratovolcano with many lava flows on its flanks. The migration of summit vents along a N-S line gives the summit crater complex an elongated form. The youngest crater of this conical andesitic-to-dacitic edifice is at the southern end of the four overlapping summit craters. An unconfirmed eruption was noted in 1881, and solfataric activity was seen at the summit and upper flanks in 1912. No confirmed historical eruptions were recorded prior to explosive eruptions during August-September 2010 that produced ash plumes to 5 km above the summit.

Turrialba, Costa Rica
10.025°N, 83.767°W, Elevation 3340 m
OVSICORI-UNA reported that events at Turrialba at 1101 and 1427 on 26 January and at 0920 on 30 January generated plumes that rose 100-200 m above the crater rim and drifted SW.

Geological summary: Turrialba, the easternmost of Costa Rica's Holocene volcanoes, is a large vegetated basaltic-to-dacitic stratovolcano located across a broad saddle NE of Irazú volcano overlooking the city of Cartago. The massive 3340-m-high Turrialba is exceeded in height only by Irazú, covers an area of 500 sq km, and is one of Costa Rica's most voluminous volcanoes. Three well-defined craters occur at the upper SW end of a broad 800 x 2200 m summit depression that is breached to the NE. Most activity originated from the summit vent complex, but two pyroclastic cones are located on the SW flank. Five major explosive eruptions have occurred during the past 3500 years. A series of explosive eruptions during the 19th century were sometimes accompanied by pyroclastic flows. Fumarolic activity continues at the central and SW summit craters.

Source: GVP

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The Weekly Volcanic Activity Report: January 24 - 30, 2018

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New activity/unrest was reported for 5 volcanoes between January 24 and 30, 2018. During the same period, ongoing activity was reported for 12. New activity/unrest: Kadovar, Papua New Guinea | Kusatsu-Shiranesan, Honshu (Japan) | Mayon, Luzon (Philippines) | San Miguel, El Salvador | Zaozan, Honshu (Japan).

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2/7/18 Explosion in Oregon, SO2, Cascadia Zone, Long Valley Supervolcano Caldera

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Parts: 0:06 - Oregon Explosion 2/6/18 1:10 - SO2 emissions from Oregon explosion. 4:04 - Second Oregon explosion 2/7/18 5:13 - 1,328 earthquakes magnitude 7.0 and above past 110 years. 10:36 - Long Valley caldera seismic activity past 16 years.

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2/10/18 Yellowstone, Grays Harbor Explosion, South Korea Quake, New York

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Parts: 0:09 - South Korea Quake 1:47 - Lake Yellowstone micro quake swarm 4:45 - Two explosions 8:52 - Third very very weird explosion 11:17 - Boom associated with 2.2 earthquake in New York 14:07 - Conclusion Three explosion links: - https://earthquake.usgs.gov/earthquakes/eventpage/uw61368431#executive - https://earthquake.usgs.gov/earthquakes/eventpage/uw61368421#executive - https://earthquake.usgs.gov/earthquakes/eventpage/uw61368391#executive Email: benferraiuolo@yahoo.com -Cool Real-Time Satellite Imagery: http://weather.cod.edu/satrad/exper/ If anyone would like any seismic or uplift data from my new archive for a certain day or week, email me at benferraiuolo@yahoo.com.

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Yellowstone Swarm, Lake Yellowstone Intrusion, Explosion and Smoke Plumes

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Parts: 0:10 - Explosions 5:01 - Rattlesnake Ridge explosion 7:33 - New Yellowstone swarm 9:06 - Magma intrusion or surface noise??

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Yellowstone Swarm, Lake Yellowstone Intrusion, Explosion and Smoke Plumes

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Parts: 0:10 - Explosions 5:01 - Rattlesnake Ridge explosion 7:33 - New Yellowstone swarm 9:06 - Magma intrusion or surface noise??

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Crazy Yellowstone Swarm, Quakes in Diverse Places, Manipulated Data Proof 2/17/18

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Parts: 00:10 - Multiple quakes in diverse places 04:49 - 7.5 Mexico quake on Bozeman Montana Long Period Graph 05:23 - Crazy Yellowstone earthquake swarm 09:38 - Proof the "professionals" are manipulating data 13:09 - Conclusion with lots of ranting! Loud earthquake in Wales.

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Mt. Rainier, Hood, Large Yellowstone Activity, More Manipulated Seismos (2/18/18)

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Parts: 00:06 - Mt. Hood 01:49 - Mt. Rainier 04:29 - Crazy Yelly swarm 07:43 - Possible tornillos at Yellowstone indicating magma is trying to escape 10:17 - More manipulated seismographs 13:30 - Conclusion Email: benferraiuolo@yahoo.com If anyone would like any seismic or uplift data from my new archive for a certain day or week, email me at benferraiuolo@yahoo.com.

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Yellowstone Chronicles MisInformation, Yelly Swarm Still Going, Lots of Rhythmic Signals (2/19/18)

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RANTING INBOUND! Parts: 00:28 - Yellowstone Chronicles... REALLY?! 12:25 - Yellowstone Seismographs 13:48 - My attempt at proving magma intrusion. I could have done better. 17:03 - Conclusion Yellowstone Magma Chamber depth: https://volcanoes.usgs.gov/volcanoes/yellowstone/yellowstone_sub_page_52.html Email: benferraiuolo@yahoo.com If anyone would like any seismic or uplift data from my new archive for a certain day or week, email me at benferraiuolo@yahoo.com.

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yellowstone recharging faster than ever expected

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Yellowstone Volcano Recharging Faster Than Ever Expected, What to Expect When It Erupts

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http://marygreeley.com/?p=59623 The biggest concern with an eruption the size of Yellowstone is ashfall. The force would shoot ash into the atmosphere up to 30 kilometers high where the easterly Jetstream would carry it as far away as Europe within three days.

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if current yellowstone activity continues 6 months to a eruption

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IF, IF, If Current Yellowstone Activity Continues 6 Months To A Eruption

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Too much censoring, Earthquake not reported, links removed, hackers, they don't want you to prepare. Please prepare. IF this current earthquake and magma continues on it current track of activity, and increases I would not be surprised of a eruption at Yellowstone in 6 months. But, there are a lot of if's.

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God Help Us, 80-year Winter When Yellowstone Erupts

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2/18/18 Sinabung Volcano Eruption 55k feet

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warning; yellowstone super volcano will 'not' have a large earthquake before a eruption

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Warning; Yellowstone Super Volcano Will 'NOT' Have A Large Earthquake Before a Eruption

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fast magma refills suggest some volcanoes connect straight to the mantle

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Deep Earthquakes, To Watch, Fast Magma Refills, Some Volcanoes Connect Straight to the Mantle

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Tectonic plates cover the Earth's surface. The boundaries between these plates can be dangerous places, with earthquakes, volcanoes, and tsunamis all originating along the places where plates meet. The plates create two types of volcanoes. Those that sit on oceanic crust are directly connected to the mantle (the thick layer between the Earth's crust and molten outer core); they spew magma directly from it.

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yellowstone supervolcano 2-1-18 m3.4 earthquake

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Yellowstone SuperVolcano 2-1-18 M3.4 Earthquake, Harmonic Tremors

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yellowstone super volcano 2-2-19 four events of intrusion of magma

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Yellowstone Super Volcano 2-2-18 Four Events of Intrusion Of Magma, M2.5 Earthquake

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The intrusion of magma into the caldera showing at all the boreholes spectrograms, Showing how the depth of the melt is increasing across the park, not just one location. Mary Greeley P.O.

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yellowstone super-volcano 2-5-18 a lot of magma rises

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Yellowstone Super-Volcano 2-5-18 A 'LOT' of Magma Rises, Unreported earthquakes

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A lot of magma came into the Norris Junction area yesterday. Today I talk about the uplift at Norris Junction and the South Creek resurgent dome of 13 inches. Would like to support the work I do You can do this with just $1 a month through Patreon.

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seeks to replace 172 windows at mammoth hot springs hotel

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Yellowstone Earthquake Safety, seeks to replace 172 windows at Mammoth Hot Springs Hotel

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Yellowstone National Park planners as part of a seismic stabilization and interior/exterior rehabilitation project. The park proposes to replace 172 one-over-one, double-hung wood windows with new wood windows that duplicate the same style on the guest wing. http://marygreeley.com/?p=65221 If you would like to help support my work you can do so for just $1.

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Yellowstone Super Volcano 2-7-18 Caldera Recharges, More Magma, Gases, Earthquakes

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Here I explain the spectrograms, Intrusion of Magma recharging this volcano. Fracking south of Yellowstone outside the uplift is not causing magma to rise. This is the largest caldera, volcano in the world. So big when it does decide to go the scare on earth would be shocking.

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Alaska Earthquake Swarm, What it means, Megathrust Earthquake, Shumagin Island

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The easternmost megathrust earthquake was the March 28, 1964 M9.2 Prince William Sound earthquake, currently the second largest recorded earthquake in the world. The event had a rupture length of roughly 700 km extending from Prince William Sound in the northeast to the southern end of Kodiak Island in the southwest.

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yellowstone super volcano 2-10-18 bigger than toba

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Yellowstone Super Volcano 2-10-18 Bigger than Toba, More Magma Rises

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yellowstone: super volcano under ‘strain’ – experts find magma chamber pressure

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Yellowstone: Super volcano under 'STRAIN' - experts find magma chamber pressure

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YELLOWSTONE is "under strain" according to a group of seismologists who are monitoring the potentially catastrophic volcano, prompting fears an eruption is imminent. http://marygreeley.com/?p=65627 This discovery suggests that eruptions in a wider range of volcanoes might be predicted by techniques such as earthquake monitoring, something proposed for Icelandic volcanoes.

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small meteor falls over old faithful geyser 2-13-18 12:30 am

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Yellowstone, Small Meteor Falls Over Old Faithful Geyser 2-13-18 12:30 am

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I was lucky to catch this late last night. A small meteor fell in the view of the Old Faithful Live web camera. Old Faithful Live web camera https://www.nps.gov/features/yell/webcam/oldFaithfulStreaming.html

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Happy Valentines Day, Yellowstone Super Volcano, M2.3-2.5 Not Reported, Magma and Gases

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Not surprising no earthquakes reported today, for Yellowstone, Helena Valley or Idaho Hot Springs. It is a holiday they must have taken off. But the earth didn't. More News at my web page, marygreeley.com Wish to show your support? Patreon https://www.patreon.com/user?u=3969921 PayPal paypal.me/Marygreeley https://www.paypal.com/pools/c/7ZFN5i3TVd https://www.paypal.com/donate/?token=IhqBlUUP7tdIytQZT92rsRS9cbqiK2Y-8Aa9-d1zJlaZDRb7ioZJLrY_On7fChawt2nRrG&country.x=US&locale.x=US

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Heads Up,: Yellowstone LARGE Earthquake Swarm, Super Volcano 2-15-18

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Today as the earth is being impacted by a CME solar stream the earthquakes have started. Yesterday in my report I told you this could happen. University of Utah is only reporting a portion of these moderate size earthquakes. Yellowstone is said to only had the capability of the largest earthquake of a M5.

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yellowstone volcano 2-17 hundreds of earthquakes! soda springs photos

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Yellowstone Volcano 2-17 Hundreds Of Earthquakes! Soda Springs Photos

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The earthquake swarm at Yellowstones Super-Volcano increases, along with gases, magma and tilt, uplift. Photos sent in from Soda Springs Idaho Thank you! Dangers of gases effects explained. Help support this work if you wish with just $1. monthly subscription to Patreon. Patreon https://www.patreon.com/user?u=3969921 PayPal paypal.me/Marygreeley https://www.paypal.com/pools/c/7ZFN5i3TVd https://www.paypal.com/donate/?token=IhqBlUUP7tdIytQZT92rsRS9cbqiK2Y-8Aa9-d1zJlaZDRb7ioZJLrY_On7fChawt2nRrG&country.x=US&locale.x=US

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Yellowstone Super Volcano, Earthquake Swarm!! New Uplift Charts, Spectrograms Corrected

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I have some new Uplift charts, and I auto corrected the color on the spectrograms. They is what they are..... 🤔 Monitors again, shut down as the earthquake swarm continues.

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alert - update '5 'earthquakes at yellowstone volcano over a m2.6 -2.9 last hour!!!!!

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ALERT - UPDATE '5 'Earthquakes at Yellowstone volcano Over a M2.6 -2.9 last hour!!!!!

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The quake were coming in as I was saving this video. Go to USGS to see the new quakes.

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yellowstone large geyser eruption they tried to stop us from seeing?

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Yellowstone Large Geyser Eruption They tried to Stop Us from Seeing?

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I was watching Old Faithful live web camera and recording when this unusually large eruption went off behind Bee Hive Geyser. I have never see it so large, when suddenly my computer shut down. They was no for it shut down except if it was shut down by a hacker.

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indonesia’s mount sinabung volcano erupts sending spectacular ash column spiraling into atmosphere

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Indonesia's Mount Sinabung volcano erupts sending spectacular ash column spiraling into atmosphere

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Indonesia's Mount Sinabung volcano erupted on Monday morning, shooting a spectacular plume of ash billowing 16,400 feet into the atmosphere .http://marygreeley.com/?p=65877

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yellowstone volcano 2-19 earthquake swarm continues m2.5

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Yellowstone Volcano 2-19 Earthquake Swarm Continues M2.5, M2.4 Spectrograms Enhanced

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USGS makes us work for information. They don'' want to create a global panic the would effect the golds economies. They can't evacuate 323.1 million people WHEN it does decide to erupt. They keep hoping just slow moving magma eruptions and not a full blown caldera eruption.

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yellowstone close to eruption? scientists detect more than 200 earthquakes in just 10 days

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Yellowstone Close To Eruption? Scientists detect more than 200 earthquakes in just 10 DAYS

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Is the Yellowstone super volcano close to erupting? Scientists detect more than 200 earthquakes in just 10 DAYS after warning that magma below the surface is showing signs of strain Read here http://marygreeley.com/?p=65905

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yellowstone volcano 2-18 update ten m2.6 or larger earthquakes in 24 hours!!!!

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Yellowstone Volcano 2-18 Update Ten M2.6 or LARGER Earthquakes in 24 hours!!!!

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8:30 am - The earthquake swarm continues. Tomorrow is President's day, will U of U take the day off and not report this swam that has continues for several days? Will the new scientist in charge report this earthquake swarm? He has been quiet so far. Very disappointing.