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What cause tsunami?

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What cause tsunami?

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A tsunami is a series of waves created when a body of water, such as an ocean, is rapidly displaced on a massive scale. Earthquakes, mass movements above or below water, volcanic eruptions and other underwater explosions, landslides, large meteorite impacts and testing with nuclear weapons at sea all have the potential to generate a tsunami.

A tsunami can be generated when the plate boundaries abruptly deform and vertically displace the overlying water. Such large vertical movements of the Earth鈥檚 crust can occur at plate boundaries. Subduction earthquakes are particularly effective in generating tsunami. Source(s): http://en.wikipedia.org/wiki/tsunami...
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normally earthquakes in the ocean
plate shifting in the ocean that causes a shock wave and a big wave to start.
earthquakes in da ocean
duh!
under water earth quakes, mus slides and volcanic eruptions!!!
in earthquake in the sea. gap in bottom of sea. water goes in hole energy maeks big wave. big wave travels to wereever it is stopped, kills lots of people.