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Quake experts update outlook for ‘Really Big One’

16 Feb 2020, 03:08 UTC
Quake experts update outlook for ‘Really Big One’
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A color-coded computer simulation from 2016 shows how researchers think tsunami waves propagated from a magnitude-9 Cascadia subduction zone earthquake in the year 1700. Scientists believe such quakes occur every 500 years or so on average. (NOAA / Pacific Tsunami Warning Center)
Earthquake experts say current building codes don’t reflect the riskiest features of the Seattle area’s geology — but the outlook for survivability looks a lot better if the Really Big One can just hold off for a few more years.
That’s the bottom line from a session focusing on Seattle’s seismic hazards, presented at ground zero today during the American Association for the Advancement of Science’s annual meeting. The session — titled “Is the Coast Toast?” — followed up on a 2015 New Yorker article that painted a grim picture of the possibilities, based on studies of the Pacific Northwest’s Cascadia subduction zone.
Get the full story on GeekWire.

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