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West Coast, Alaska Could Be Due for Monster Tsunami

By Harry Kimball,  Newser Staff

Posted Jul 21, 2009 1:55 PM CDT

(Newser) – Alaska and the US West Coast could be pounded by a tsunami far more powerful than researchers had previously thought, LiveScience reports. Analysis of soil samples shows evidence of two earthquakes in the past 2,000 years capable of producing waves that dwarf a 1964 tsunami one researcher calls “the most devastating seismic sea wave to impact the northwestern coast of the US in historical time.”

That wave killed 130 people. “Our radiocarbon-dated samples suggest that previous earthquakes were 15% bigger in terms of the area affected than the 1964 event,” the study’s lead author says. The new evidence “has significant implications for the tsunami potential of the Gulf of Alaska and the Pacific region as a whole.”

Beachgoers at a beach closed due to tsunami conditions.
Beachgoers at a beach closed due to tsunami conditions.   (AP Photo)
A breaking wave.
A breaking wave.   (Shutterstock)
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Earthquakes can hit at any time of the day or night, and that’s a big challenge for emergency planners. A tsunami in this region could cause damage and threaten life from Alaska to California and beyond. - Ian Shennan, Durham University, UK

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COMMENTS
Showing 3 of 4 comments
kokuaguy
Jul 21, 2009 10:53 AM CDT
Yup, at least with toradoes you may have adequate time when warned to get to a safe place. I wonder evacuation in the event of a monster like this is feasible? Traffic gridlock in Waikiki would doom thousands I fear if the wave(s) came our direction.
Caps
Jul 21, 2009 9:51 AM CDT
Yep, you got that right.
The_Pinkston
Jul 21, 2009 9:10 AM CDT
Im gonna stay in the Midwest. Hurricanes to the right of me, Earthquakes to the left....still gotta watch out for those tornadoes though.

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