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400-year-old mystery solved: It was a tsunami, not a storm

New evidence reveals tsunami hit the west coast of England in 1607.

We now know a lot about tsunamis that we didn't know a few years ago. There's even been significant research showing how hurricanes and tsunamis can act alike once onshore. Today, we learn a little more about a tsunami that occurred 400 years ago.

Scientists now conclude that it was a tsunami that flooded the Bristol Channel in western England. It flooded hundreds of square miles and scoured the landscape, killing about 2,000 people. And that was on January 30, 1607. Long before anybody in England ever heard the word "tsunami." At the time, it was considered a storm.