Tuesday, October 19, 2010
Tsunamis
Tsunamis form from earthquakes, volcanic eruptions, or landslides that occur under the sea. When this event happens under the water, huge amounts of energy are released as a result of quick upward bottom movement. For example, if a volcanic eruption occurs, the ocean floor will quickly move upward several hundred feet. When this happens, huge volumes of ocean water are pushed upward and a wave is formed. A large earthquake can lift thousands of square kilometres of sea floor, which will cause the formation of huge waves. The Pacific Ocean is especially prone to tsunamis.
Friday, October 1, 2010
finally the last volcanoe blog
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