How does a Tsunami Happen?

Answer

A tsunami occurs when the sea bed experiences sudden movement up or down. This then creates waves in the ocean. Depending on the depth of the movement, and extent of the movement, the resulting waves could be a few inches or a few meters. Look here for more information: http://www.tsunami.noaa.gov/
Ask.com Answer for: how does a tsunami happen
Tsunami are large waves caused by sudden movement of the ocean due to earthquakes, landslides, large volcanic eruptions or meteorite impact in the ocean.
Most tsunami are caused by large earthquakes on the seafloor when slabs of rock move past each other suddenly, causing the overlying water to move.
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