Simultaneous rupture of faults triggered massive earthquake in Seattle area 1,100 years ago — and it could happen again

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Fossilized tree analysis finds a single massive earthquake may have rocked what is now Seattle around 1,100 years ago rather than several smaller quakes, and that another equally powerful one could hit the city in the future.

Simultaneous rupture of faults triggered massive earthquake in Seattle area 1,100 years ago — and it could happen again : Read more