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 In  active Volcano                                                 for example: Smith Volcano

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 In  active Volcano                                                 for example: Smith Volcano

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Smith Volcano, also known as Mount Babuyan, is a cinder cone on Babuyan Island, the northernmost of the Babuyan group of islands on Luzon Strait, north of the main island of Luzon in the Philippines.

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it is apopular way classifiying magmatic volcanoes is by thier frequency of eruption....and those that not erupted is historical times called extinct ...

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an active volcano has had one eruption by the past 10 000 years.....it may erupting or dormant!!!!!!!!!!!

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Mary ann recentes
abella
parlingaya

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*Formentera , Honey Lyn
*Bemil , Joy Ann
*Masisay , Kriss Ann

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Mohayam Dudin
Ferliza Tormis
Dasan
Solde
Abdul

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"MOUNT BALUNGAO"                                         

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"MOUNT BALUNGAO"                                         

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is an extinct volcano located in Pangasinan, Ilocos Region, on the island of Luzon in the Philippines. Rising to the height of 382 metres (1,253 ft) ASL, it is located in the town of Balungao, about 5 kilometres (3.1 mi) from the town center. It is the main tourist attraction of the town, along with the Balungao Hot and Cold Spring Resort nearby.[1] Mount Balungao is listed as an inactive volcano by the Philippine Institute of Volcanology and Seismology (PHIVOLCS).

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Mt.Kanlaon
Canlaon, is an active stratovolcano on the island of Negros, Philippines. It is the highest point in Negros, as well as the whole Visayas, with an elevation of 2,465 m (8,087 ft) above sea level. The volcano straddles the provinces of Negros Occidental and Negros Oriental, approximately 30 km (19 mi) southeast of Bacolod, the capital and most populous city of Negros Occidental and of the whole island region.

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GROUP MEMBER:                                          Queenie alejandre                                        angela cordova                                                        bador GLAIZEL                                                             

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GROUP MEMBER:                                          Queenie alejandre                                        angela cordova                                                        bador GLAIZEL                                                             

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Mount Ragang, also called Mount Piapayungan and Blue Mountain by the local people, is a stratovolcano onMindanao island in the Philippines. It is the seventh highest mountain in thePhilippines and the highest point inLanao del Sur.

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Active Vocanoes                                         Mount St.helens    Mount St. Helens or Louwala-Clough is an active stratovolcano located in Skamania County, Washington, in the Pacific Northwest region of the United States. It is 96 miles south of Seattle, Washington, and 50 miles northeast of Portland, Oregon. WikipediaLast eruption: 10 July 2008Elevation: 2,550 mTopo map: USGS Mount St. HelensMountain range: Cascade RangeFirst ascender: Thomas J. DryerDid you know: Mount St. Helens is one of the Cascade Volcanoes that reach from Washington to California.                                

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Active Vocanoes                                         Mount St.helens    Mount St. Helens or Louwala-Clough is an active stratovolcano located in Skamania County, Washington, in the Pacific Northwest region of the United States. It is 96 miles south of Seattle, Washington, and 50 miles northeast of Portland, Oregon. WikipediaLast eruption: 10 July 2008Elevation: 2,550 mTopo map: USGS Mount St. HelensMountain range: Cascade RangeFirst ascender: Thomas J. DryerDid you know: Mount St. Helens is one of the Cascade Volcanoes that reach from Washington to California.                                

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Mt.Barva
Barva Volcano is an andesitic stratovolcano complex in central Costa Rica, 22 km north of San José, in Heredia Province. On the eastern side of the mountain it has a lake in what was the volcanic crater, called "Laguna de Barva", and in the western side it has three hills on the top which are called "Las Tres Marías".[1] It is located in the small agricultural community of Sacramento.
The last confirmed eruptive activity at Barva Volcano has been dated to 8,050 years ago. There were reports of eruptions in the 1760s and in 1867, but investigations at the summit did not find evidence to confirm the reports

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Mount Leura

Volcano in Victoria, Australia

Mount Leura is a 313-metre scoria cone surrounding a dry crater 100 m deep and is the central and most obvious component of a larger volcanic complex southeast of the town of Camperdown located in

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Rulete
Valiroso
Cordova aid mark

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Musuan Peak or Mount Musuan, also known as Mount Calayo is an active volcano on the island of Mindanao in the Philippines. It is 4.5 kilometres south of the city of Valencia, province of Bukidnon, and 81 kilometres southeast of Cagayan de Oro City. WikipediaElevation: 646 mLast eruption: 1886 or 1887Location: MindanaoMunicipality: Maramag, BukidnonProvince: BukidnonRegion: Northern Mindanao

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Musuan Peak or Mount Musuan, also known as Mount Calayo is an active volcano on the island of Mindanao in the Philippines. It is 4.5 kilometres south of the city of Valencia, province of Bukidnon, and 81 kilometres southeast of Cagayan de Oro City. WikipediaElevation: 646 mLast eruption: 1886 or 1887Location: MindanaoMunicipality: Maramag, BukidnonProvince: BukidnonRegion: Northern Mindanao

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Lake Sampaloc is an inactive volcanic maar on the island of Luzon, the Philippines.

It is the largest of the Seven Lakes of San Pablo, Laguna. Nearly half of the lake's depth has a shallow depression at the bottom, indicating its volcanic origin. The lake is behind San Pablo city hall and is dotted with fishpens and small cottages built on stilts.

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rochelle mae tagas
czeechi gianne alemania

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The inactive volcano Mount Kitanglad is one of the tallest peaks in the Philippines and forms part of the Kitanglad Mountain Range. Many of the inactive volcanoes are currently lakes, with water filling their craters. The tallest mountain in the Laguna Volcanic Field is Mount Makiling, and its previous eruption date is not known. The field contains 200 dormant volcanoes. Although inactive, the underground heat from the volcanoes causes hot springs and areas of geothermal mud.

The Institute defines an inactive volcano as a volcano with a record of previous eruption that is not expected to erupt again in the near future. However, an inactive volcano does contain the necessary plumbing for a potential eruption. Inactive volcanoes may also be referred to as dormant. Volcanoes may also be classified as active or extinct.

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Tanting, hamia L.
Gallenero, Stephanie
Diamad,Melody
Justan,
Sanchez
Kapina,Sheena
Kapina,Shahanie
Mamasamlok,Bainor

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Smith Volcano, also known as Mount Babuyan, is a cinder cone on Babuyan Island, the northernmost of the Babuyan group of islands on Luzon Strait, north of the main island of Luzon in thePhilippines. The mountain is one of theactive volcanoes in the Philippines, which last erupted in 1924.

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Mount Balungao is an extinct volcanolocated in Pangasinan, Ilocos Region, on the island of Luzon in the Philippines. Rising to the height of 382 metres (1,253 ft) ASL, it is located in the town ofBalungao, about 5 kilometres (3.1 mi) from the town center. It is the main tourist attraction of the town, along with the Balungao Hot and Cold Spring Resort nearby.[1] Mount Balungao is listed as an inactive volcano by thePhilippine Institute of Volcanology and Seismology (PHIVOLCS).

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Mount Makaturing, is a stratovolcano onMindanao island in the Philippines. It is found in the province of Lanao del Sur(particularly in the town of Butig) in theAutonomous Region in Muslim Mindanao. Makaturing has an elevation of 1,940 metres (6,365 ft) and a base diameter of 29 km (18 mi). It is part of a string of volcanoes called the Central Mindanao Arc.

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Mount Hibok-Hibok (also known asCatarman Volcano[3][4]) is astratovolcano on Camiguin Island in thePhilippines.[1] It is one of the active volcanoes in the country and part of thePacific ring of fire.

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MAHINAY, BAYANG,BEATINGO R.,MASISAY J.

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Types of Volcanic EruptionsArticle by Jessica Ball

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Types of Volcanic EruptionsArticle by Jessica Ball

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Types of Volcanic Eruptions

Article by Jessica Ball

Hawaiian EruptionHawaiian eruption. In a Hawaiian eruption, fluid lava is ejected from a vent as fire fountains or lava flows. The 1969 eruption at Mauna Ulu, a vent of Kilauea Volcano in Hawaii, was a spectacular example of fire fountaining. Photo by D.A. Swanson, USGS, August 22, 1969. Enlarge Image

Volcanic Eruptions

The most common type of volcanic eruption occurs when magma (the term for lava when it is below the Earth's surface) is released from a volcanic vent. Eruptions can be effusive, where lava flows like a thick, sticky liquid, or explosive, where fragmented lava explodes out of a vent. In explosive eruptions, the fragmented rock may be accompanied by ash and gases; in effusive eruptions, degassing is common but ash is usually not.

Volcanologists classify eruptions into several different types. Some are named for particular volcanoes where the type of eruption is common; others concern the resulting shape of the eruptive products or the place where the eruptions occur. Here are some of the most common types of eruptions:

Hawaiian Eruption

In a Hawaiian eruption, fluid basaltic lava is thrown into the air in jets from a vent or line of vents (a fissure) at the summit or on the flank of a volcano. The jets can last for hours or even days, a phenomenon known as fire fountaining. The spatter created by bits of hot lava falling out of the fountain can melt together and form lava flows, or build hills called spatter cones. Lava flows may also come from vents at the same time as fountaining occurs, or during periods where fountaining has paused. Because these flows are very fluid, they can travel miles from their source before they cool and harden.

Hawaiian eruptions get their names from the Kilauea volcano on the Big Island of Hawaii, which is famous for producing spectacular fire fountains. Two excellent examples of these are the 1969-1974 Mauna Ulu eruption on the volcano's flank, and the 1959 eruption of the Kilauea Iki Crater at the summit of Kilauea. In both of these eruptions, lava fountains reached heights of well over a thousand feet.

Strombolian EruptionStrombolian eruption. Short bursts of glowing lava, created from the bursting of large gas bubbles at the summit vent of a volcano typify a Strombolian eruption. This photo, taken from the summit of Stromboli, a volcano in the Aeolian Islands, Italy, shows a classic example of this activity. Photo © iStockphoto / Andrew Hague.What Determines Eruption TypeThe crystal and gas content and temperature of a magma help determine a volcano's eruption style.

-- Crystals in magma make it more viscous, so magma with a high crystal content is more likely to explode than flow.

-- Gases create explosions if they cannot easily escape from viscous magma, but they can also be released without explosions (or with only minor ones) from fluid magma.

-- High-temperature magmas usually erupt effusively, while low-temperature magmas cannot flow easily and are more likely to erupt explosively.

Strombolian Eruption

Strombolian eruptions are distinct bursts of fluid lava (usually basalt or basaltic andesite) from the mouth of a magma-filled summit conduit. The explosions usually occur every few minutes at regular or irregular intervals. The explosions of lava, which can reach heights of hundreds of meters, are caused by the bursting of large bubbles of gas, which travel upward in the magma-filled conduit until they reach the open air.

This kind of eruption can create a variety of forms of eruptive products: spatter, or hardened globs of glassy lava; scoria, which are hardened chunks of bubbly lava; lava bombs, or chunks of lava a few cm to a few m in size; ash; and small lava flows (which form when hot spatter melts together and flows downslope). Products of an explosive eruption are often collectively called tephra.

Strombolian eruptions are often associated with small lava lakes, which can build up in the conduits of volcanoes. They are one of the least violent of the explosive eruptions, although they can still be very dangerous if bombs or lava flows reach inhabited areas. Strombolian eruptions are named for the volcano that makes up the Italian island of Stromboli, which has several erupting summit vents. These eruptions are particularly spectacular at night, when the lava glows brightly.

Vulcanian EruptionVulcanian eruption. Relatively small but violent explosions of viscous lava create columns of ash and gas and occasional pyroclastic flows, as seen at this eruption of the Santiaguito volcanic dome complex in Guatemala. Photo by Jessica Ball, March 15, 2009.

Vulcanian Eruption

A Vulcanian eruption is a short, violent, relatively small explosion of viscous magma (usually andesite, dacite, or rhyolite). This type of eruption results from the fragmentation and explosion of a plug of lava in a volcanic conduit, or from the rupture of a lava dome (viscous lava that piles up over a vent). Vulcanian eruptions create powerful explosions in which material can travel faster than 350 meters per second (800 mph) and rise several kilometers into the air. They produce tephra, ash clouds, and pyroclastic density currents (clouds of hot ash, gas and rock that flow almost like fluids).

Vulcanian eruptions may be repetitive and go on for days, months, or years, or they may precede even larger explosive eruptions. They are named for the Italian island of Vulcano, where a small volcano that experienced this type of explosive eruption was thought to be the vent above the forge of the Roman smith god Vulcan.

Plinian EruptionPlinain eruption. The largest and most violent of all explosive eruptions, Plinian eruptions send columns of pulverized rock, ash, and gases that rise miles into the atmosphere in a matter of minutes. Mount St. Helens in Washington State experienced a Plinian eruption following a major flank collapse in 1980. Photo by Austin Post, USGS, May 18, 1980. Enlarge Image

Plinian Eruption

The largest and most violent of all the types of volcanic eruptions are Plinian eruptions. They are caused by the fragmentation of gassy magma, and are usually associated with very viscous magmas (dacite and rhyolite). They release enormous amounts of energy and create eruption columns of gas and ash that can rise up to 50 km (35 miles) high at speeds of hundreds of meters per second. Ash from an eruption column can drift or be blown hundreds or thousands of miles away from the volcano. The eruption columns are usually shaped like a mushroom (similar to a nuclear explosion) or an Italian pine tree; Pliny the Younger, a Roman historian, made the comparison while viewing the 79 AD eruption of Mount Vesuvius, and Plinian eruptions are named for him.

Plinian eruptions are extremely destructive, and can even obliterate the entire top of a mountain, as occurred at Mount St. Helens in 1980. They can produce falls of ash, scoria and lava bombs miles from the volcano, and pyroclastic density currents that raze forests, strip soil from bedrock and obliterate anything in their paths. These eruptions are often climactic, and a volcano with a magma chamber emptied by a large Plinian eruption may subsequently enter a period of inactivity.

Lava DomeLava dome. Lava domes, such as this example in the crater of Mount St. Helens, are piles of viscous lava that are too cool and sticky to flow far. Domes grow and collapse in cycles, and often form at volcanoes that also experience Plinian eruptions. Photo by Lyn Topinka, USGS, August 12, 1985. Enlarge Image

Lava Domes

Lava domes form when very viscous, rubbly lava (usually andesite, dacite or rhyolite) is squeezed out of a vent without exploding. The lava piles up into a dome, which may grow by inflating from the inside or by squeezing out lobes of lava (something like toothpaste coming out of a tube). These lava lobes can be short and blobby, long and thin, or even form spikes that rise tens of meters into the air before they fall over. Lava domes may be rounded, pancake-shaped, or irregular piles of rock, depending on the type of lava they form from.

Lava domes are not just passive piles of rock; they can sometimes collapse and form pyroclastic density currents, extrude lava flows, or experience small and large explosive eruptions (which may even destroy the domes!) A dome-building eruption may go on for months or years, but they are usually repetitive (meaning that a volcano will build and destroy several domes before the eruption ceases). Redoubt volcano in Alaska and Chaiten in Chile are currently active examples of this type of eruption, and Mount St. Helens in the state of Washington spent several years building several lava domes.

Surtseyan EruptionSurtseyan eruption. Lava erupting through water creates the dramatic plumes of scoria and billowing ash-and-gas clouds of a Surtseyan eruption. The type example of this eruption occurred at Surtsey, a volcanic island off the coast of Iceland. NOAA image of the 1963 eruption. Enlarge Image

Surtseyan Eruption

Surtseyan eruptions are a kind of hydromagmatic eruption, where magma or lava interacts explosively with water. In most cases, Surtseyan eruptions occur when an undersea volcano has finally grown large enough to break the water's surface; because water expands when it turns to steam, water that comes into contact with hot lava explodes and creates plumes of ash, steam and scoria. Lavas created by a Surtseyan eruption tend to be basalt, since most oceanic volcanoes are basaltic.

The classic example of a Surtseyan eruption was the volcanic island of Surtsey, which erupted off the south coast of Iceland between 1963 and 1965. Hydromagmatic activity built up several square kilometers of tephra over the first several months of the eruption; eventually, seawater could no longer reach the vent, and the eruption transitioned to Hawaiian and Strombolian styles. More recently, in March 2009, several vents of the volcanic island of Hunga Ha'apai near Tonga began to erupt. The onshore and offshore explosions created plumes of ash and steam that rose to more than 8 km (5 miles) altitude, and threw plumes of tephra hundreds of meters from the vents.

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Lejarso

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MAHINAY

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Adam Bai Adanan
Duminguez
Cañezares
Angelyn Beatingo

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Adam Bai Adanan
Dumin

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Adam Bai Adanan
Duminguez
Can

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Adam Bai Adanan

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Adam Bai Adanan

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= Mayon volcano is the philippines Modt Active Volcano and is considered to be the worlds most perfectly formed volcano for its symwetrycal cone. It is a basaltic-andesitic volcano.

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active Volcano                             for example: Mayon                                                                                     

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active Volcano                             for example: Mayon                                                                                     

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Mayon, also known as Mayon Volcano or Mount Mayon, is an active stratovolcano in the province of Albay in Bicol Region, on the large island of Luzon in the Philippines.