Ancient Deluge Turned Big Apple into the Big Soggy - Tech Talk - CBS News: "A cosmic impact two millennia ago may have sent tsunamis deluging what is now the Big Apple, scientists suggest. Many of the giant sea waves known as tsunamis are caused by underwater earthquakes and volcanoes -- for example, the devastating 2004 Indian Ocean tsunami was triggered by a quake off the northwestern coast of Sumatra. Still, the causes of nearly 10 percent of all tsunamis nowadays remain uncertain.
Cosmic impacts have been known to cause tsunamis in the past. For instance, scientists have found evidence that the Chicxulub impact in Mexico, which may have ended the age of dinosaurs, triggered gigantic waves.
Now researchers have evidence suggesting that an asteroid roughly 200 yards (183 meters) wide crashed off the coast of New Jersey and sent tsunamis surging toward what is now New York City some 2,300 years ago.
Check out the Video - Recreating an Ancient Tsunami"
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