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Tsunamis start with an earthquake beneath the ocean bed. There is a sudden massive and very powerful movement of seabed upward/downward. When this happens the entire column of water above the location of the quake moves. This is one thing that distinguishes a tsunami from an ordinary wave. Ordinary waves may affect water for a few meters down from the surface, but a tsunami is the movement of the entire water column from surface to ocean floor.
This surge of water moves outward in all directions. Where the water gets deeper, the energy is dissipated somewhat, but where the water is more shallow, the energy is concentrated again. This is why when the wave hits land there is a tremendous concentration of energy.
Wiki User
∙ 10y ago
Wiki User
∙ 8y agoTsunami is caused by earthquakes in the ocean,
Wiki User
∙ 13y agoThey don't really erupt in the same way as a volcano erupts. Tsunamis are a large wave of water that forms when the sea floor jumps up suddenly due to tectonic plate movements.
Wiki User
∙ 13y agoThe sea.
Anonymous
earthquakes along the ocean floor
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What causes mega tsunamis?
Landslides and other big impacts like volcanic eruptions cause mega tsunamis
What are the three major causes of tsunamis?
Tsunamis are caused by the sudden movement in water by tectonic plates. Tsunamis are a result of Earthquakes.
What are the causes and effects of tsunamis in points?
Tsunamis are caused by shifts in tectonic plates in the middle of the ocean. Once they come ashore, tsunamis can cause millions of dollars in property damage.
What physical processes causes a Tsunamis?
usually and underwater volcano.
What causes tsnamis?
earthquakes are the most things that cause a tsunamis
Where do tsunamis typically form?
tsunamis come from a disturbance in the water like a volcanic erruption which causes the water to draw back creating a huge wave
Why is Pacific Ocean ideal of Tsunamis?
The pacific plate slides across the North American plate for example, which causes tsunamis to form do to underwater earthquakes
What causes mega tsunamis?
Landslides and other big impacts like volcanic eruptions cause mega tsunamis
Can tsunamis form in shallow water?
no.
What are causes for tsunamis?
What causes the tsunami is an earthquake under ground and it blows the water to land
What causes most of the damaged associated with tsunamis?
The mass of the wavefront causes most of the damage.
What are the three major causes of tsunamis?
Tsunamis are caused by the sudden movement in water by tectonic plates. Tsunamis are a result of Earthquakes.
What causes most tsunamis earthquakes a full moon a hurricane or a flood?
Of these things, earthquakes are the only ones that can cause tsunamis.
What are the causes and effects of tsunamis in points?
Tsunamis are caused by shifts in tectonic plates in the middle of the ocean. Once they come ashore, tsunamis can cause millions of dollars in property damage.
What causes tsnamis?
earthquakes are the most things that cause a tsunamis
What physical processes causes a Tsunamis?
usually and underwater volcano.
Do tsunamis have weather geologic or humans cause?
Tsunamis are geologic in origin. Typically they are triggered by earthquakes, but other causes can include landslides and volcanic eruptions.
