00:00Scientists are sounding fresh alarms about the growing threat of a mega-tsunami targeting Alaska, Hawaii, and the U.S.
00:07West Coast.
00:08New seismic data from the Cascadia subduction zone, a massive fault line running off the coasts of Washington, Oregon,
00:15and Northern California shows stress patterns that have geologists deeply concerned.
00:20The last time this fault ruptured with full force was over 300 years ago in 1700.
00:25When it goes again, researchers estimate it could produce a magnitude 9.0 earthquake
00:31and generate tsunami waves capable of inundating coastal communities within minutes.
00:37Modeled simulations show waves reaching 80 to 100 feet in some locations.
00:42Seattle, Portland, and dozens of smaller coastal towns sit in the direct impact zone.
00:47Alaska and Hawaii face additional risks from separate Pacific fault systems.
00:52FEMA has warned for years that the Pacific Northwest is dangerously underprepared for a Cascadia event.
00:59New satellite data suggests the fault could be closer to its rupture threshold than previously understood.
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