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Tsunami's
A tsunami is series of huge waves .
They occur after an ocean diturbance such as a volcanoe eruption or earthquake
The waves can travel in an open sea as fast as 450 mph
As the waves approach land, they can be as high as 100ft
Has nothing to do with the tides.
As a tsunami gets closer to land it slows down beacuse of the shallow water. A tsunami's momentum can be so powerful it can destroy houses, buildings, trees, and ships.