00:00Scientists are issuing a chilling new warning.
00:02A 1,000-foot megatsunami could one day devastate the entire U.S. west coast.
00:07And three states are directly in the firing line.
00:10Researchers at Columbia University and the United States Geological Survey
00:15have identified the Cascadia subduction zone,
00:18a 600-mile fault line stretching from northern California to Vancouver Island,
00:23as one of the most dangerous geological features on Earth.
00:26When it ruptures, scientists say,
00:29the resulting wave could exceed 1,000 feet in height in some locations.
00:34The three states most at risk?
00:36California, Oregon, Washington.
00:40Coastal cities including Seattle, Portland, and San Francisco could be hit within minutes.
00:46Studies show entire towns along the coast could be wiped from the map.
00:51Survivors would have less than 30 minutes to reach high ground.
00:54The fault has not produced a major earthquake since 1700.
00:58And scientists say it is now overdue.
01:01According to the USGS,
01:03there is roughly a one-in-three chance of a major Cascadia event in the next 50 years.
01:08Federal agencies have begun reviewing tsunami evacuation routes.
01:12If you live anywhere on the U.S. west coast,
01:15knowing your local evacuation plan could save your life.
01:18And then it's a radioennim��.
01:18Today, the design is lab SEUY Hall,
01:18age out the final month.
01:18And they can do it.
01:19I quit.
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