FEMA is Preparing For the Cascadia Subduction Zone EarthQuake: Will California’s Multitude of Dam’s Hold Up? Doubtful

Map of the Cascadia Subduction Zone

The Cascadia Subduction Zone off the coast of North America spans from northern California to southern British Columbia.

The Cascadia Subduction Zone off the coast of North America spans from northern California to southern British Columbia. This subduction zone can produce earthquakes as large as magnitude 9 and corresponding tsunamis.

Photo by Mustafa Lazkani – Feb 02, 2016

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