TSUNAMI

A tsunami is a series of waves created when a body of water, such as an ocean, is rapidly displaced. Earthquakes, mass movements above or below water, some volcanic eruptions and other underwater explosions, landslides, underwater earthquakes, large asteroid impacts and testing with nuclear weapons at sea all have the potential to generate a tsunami. The effects of a tsunami can be devastating due to the immense volumes of water and energy involved. Since
meteorites are small, they will not generate a tsunami.
2004-12-26,there are a tsunami happen in our earth.Our country also can not be avoid and affected.Many of people were died for this case and there are a lot of people lose thier family.
This case let people be more careful about thier life .

refer-http://en.wikipedia.org/wiki/Special:Search?search=tsunami&fulltext=Search