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Comment some of your questions about tsunamis! I will edit this post with the answer :)

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Tsunamis can get up to 500 feet in the air, slightly above the empire state building, and they are equal height to four pyramids stacked on top of each other.

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again

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again

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Comment on this and add something that people have asked you and then add the answer.
eg: Q can tsunamis grow up to 500ft?
A Yes
Keep adding

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This is really helpful! go to 4:18 for how large they get!

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This is really helpful! go to 4:18 for how large they get!

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https://www.youtube.com/watch?v=7oaGUg7ik_c

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The end of this video is unnecessary to watch

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The end of this video is unnecessary to watch

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https://www.youtube.com/watch?v=zLJZLETc8JM

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im not sure but i think that the nuclear disaster in fukushima (japan) caused a tsunami

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im not sure but i think that the nuclear disaster in fukushima (japan) caused a tsunami

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Scientists have found traces of an asteroid-collision event that they say would have created a giant tsunami that swept around the Earth several times, inundating everything except the tallest mountains 3.5 billion years ago. 

The coastline of the continents was changed drastically and almost all life on land was exterminated. This cataclysm some 3.5 billion years ago is the earliest known meteor strike to hit the Earth, and one of at least four that have been identified in a geologically brief 300-million-year period.

When the asteroid hit, it was vaporized by the extreme energy of the impact. Condensation of this vapor produced droplets of melt, called spherules, which dropped into the roiling sea over the next few days and were deposited in layers on the sea floor. 

Byerly said it was not known 

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:I

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http://www.bom.gov.au/tsunami/info/#physics

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Tsunami (pronounced soo-NAH-mee) comes from the Japanese word harbour wave which is because all tsunamis come close to the shore before rising.

A tsunami occurs by earthquakes in the ocean which causes a disruption of massive amounts of water. This occurs when tectonic plates are caused to move upwards and a massive disruption of water launches through the water causing a large amount of energy to push it through and when it comes to close to shore something called wave shoaling occurs causing pressure and pushing the waves up and then creates larger waves up to 100ft.

In 479bc in a war the tide retreated much further than usual. But after that it came back and wiped out all citizens that were crossing to seek war.

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Tsunami is one of the most dangerous disasters caused from the ocean and can have far reaching consequences like washing out the entire city, taking years to recover and re- build human civilization.

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A tsunami is a series of waves generated in an ocean or other body of water by a disturbance such as an earthquake, landslide, volcanic eruption, or meteorite impact. ... Undersea earthquakes, which typically occur at boundaries between Earth's tectonic plates, cause the water above to be moved up or down.

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a long, high sea wave caused by an earthquake or other disturbance
:0

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Hawaii is always at great risk for a tsunami – they get about 1 per year and a severe one every 7 years. The biggest tsunami that occurred Hawaii happened in 1946, the coast of Hilo Island was hit with 30 ft waves at 500 mph.

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If caught by a tsunami wave, it is better not to swim, but rather to grab a floating object and allow the current to carry you.

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Tsunami means “harbor wave” in Japanese (tsu = harbor + nami = wave), reflecting Japan’s tsunami-prone history.

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A tsunami is a series of waves caused by earthquakes or undersea volcanic eruptions.

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The states in the U.S. at greatest risk for tsunamis are Hawaii, Alaska, Washington, Oregon, and California.

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Tsunamis can travel at speeds of about 500 miles or 805 kilometres an hour, almost as fast as a jet plane.

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A tsunami is a series of ocean waves caused by an underwater earthquake, landslide, or volcanic eruption. More rarely, a tsunami can be generated by a giant meteor impact with the ocean. These waves can reach heights of over 100 ft. About 80% of tsunamis happen within the Pacific Ocean's “Ring of Fire.”

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Self-explanatory.

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After picture, then a before picture.

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Aftermath of a tsunami

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https://www.bing.com/videos/search?q=how+a+tsunami+is+formed&adlt=strict&view=detail&mid=7E2900473917B77F9C347E2900473917B77F9C34&&FORM=VDRVRV

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where the meteor hit, but it was probably some distance from where they found the spherules and probably in water rather than on land. He deduced this because the composition of the spherules lacked the mineral composition that would have been expected from vaporization of the continental crust, and because there was even more water covering the surface of the Earth then than there is today.

Byerly illustrated with a slab of grayish rock about the size of a large hand. In it could be seen layers of spherules interlaced with layers of finer sand or silt. "It would take about 30 hours from impact for the tsunami to travel all the way around the world. Then, of course, it wouldn't stop, but bounce all the way back till it met itself 30 hours later, then bounce the other way again, setting up a harmonic." Several thin layers of mud within the spherule layer represent periods of quiet sedimentation between the arrival of tsunami waves.

Scientists have found traces of an asteroid-collision event that they say would have created a giant tsunami that swept around the Earth several times, inundating everything except the tallest mountains 3.5 billion years ago.

The coastline of the continents was changed drastically and almost all life on land was exterminated. This cataclysm some 3.5 billion years ago is the earliest known meteor strike to hit the Earth, and one of at least four that have been identified in a geologically brief 300-million-year period.

When the asteroid hit, it was vaporized by the extreme energy of the impact. Condensation of this vapor produced droplets of melt, called spherules, which dropped into the roiling sea over the next few days and were deposited in layers on the sea floor.

Byerly said it was not known The water would likely have inundated everything but the mountains, Byerly said, and drastically eroded the continental land masses, changing their coastlines dramatically. The heat of the impact would have evaporated the upper 30 to 300 feet of water in the oceans. It would also have killed everything, or almost everything, that was alive at that time on land or near the ocean surface.

"There was almost certainly life at this time. Primitive, bacterial life, and if the impacts were made by a meteor 20 miles in diameter, they would have killed everything on the surface of the Earth," he said. First a hot steam of molten rock and water would have withered most life, then the massively destructive tsunamis would have destroyed even more. After that, years of incredibly cold winters, caused by particles in the atmosphere blocking out the sun, would have conspired to kill nearly everything else.

"Anything that survived would have been in deep rocks or below the surface of the Earth," he said.
Byerly first came upon evidence of these impacts by chance in 1984 while he was studying ancient volcanism in Australia and South Africa. He published his first paper on them in 1986. This year alone he and his team will have four papers published on the subject. It is now generally accepted that the inner solar system was battered twice by massive meteor impacts of mysterious origin.

"It is assumed that the solar system was created by a cloud of dust and rocks that condensed into the sun and planets, with larger and larger chunks falling in near the end. This process would have finished about 4.5 billion years ago. (Read the story.)

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Post some pictures, facts or anything relating to tsunamis or those natural disasters!