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Tag Archives: 2004 Sumatra earthquake in the Indian Ocean

NASA Challenges Long-Held Tsunami Formation Theory

A new NASA study is challenging a long-held theory that tsunamis form and acquire their energy mostly from vertical movement of the seafloor.An undisputed fact was that most tsunamis result from a massive shifting of the seafloor, usually from the subduction, or sliding, of one tectonic plate under another during an earthquake. Experiments conducted in wave tanks in the 1970s ...

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