Earthquakes

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A tsunami is a large wave caused by earthquakes, submarine landslides, and, infrequently, by eruptions of island volcanoes. During a major earthquake, an enormous amount of water can be set in motion as the seafloor moves up and down. The result is a series of potentially destructive waves that can move at more than 500 miles per hour.

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October 20, 1986
M 8.3, Kermadec Islands Region – Objects knocked from shelves on Raoul Island. Felt at Napier and Wellington, New Zealand. Tsunami generated with maximum wave heights 22 cm at… Read More

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