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Cascadia

April 17, 2026 · 44 min

Show notes

"We're talking about Katrina, Sandy, and Andrew combined, times maybe ten."

On 10:54 AM on 28 February 2001, a 6.8-magnitude earthquake struck western Washington. The epicenter was in the southern Puget Sound, but the quake originated roughly 32 miles beneath the surface, mitigating some shaking. While hundreds were injured and a woman even died as a direct result of the quake, many believe that the region got lucky that Wednesday morning and that the total damage (~$2 billion) could have been a lot higher had the quake's hypocenter been closer to the surface.

This region of the world is no stranger to the earth's whims. Lying in the shadow of the looming Mt. Rainier, there are a couple of active faults - the Seattle Fault Zone and the Cascadia Subduction Zone - that seem poised to devastate in the not-so-distant future...



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