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The ‘Big One’ and the Pacific Northwest
At odd intervals, I ponder the Cascadian Subduction Zone.
This is a 600-mile-long geological fault in the earth’s fractured crust that lies along the coast of the Pacific Northwest, extending from northern California all the way to Vancouver. The CSZ is a type of fault well-known for causing extraordinarily destructive, 9.0+ megathrust earthquakes. Because the fault lies under a pile of salty H2O, the quake itself will be followed by a huge, catastrophic tsunami. In emergency-prep circles, this one-two punch is known as “The Big One” and … oh yeah. It’s both inevitable and overdue.
