The Cascadia subduction zone off the coast of Northwest California, Oregon, Washington State, and Vancouver Island BC could cause the worst natural disaster in the history of North America. The Pacific Northwest Earthquake could reach up to M9.0, trigger a tsunami, and shake for 3 to 5 minutes.
“Everyone knows the Cascadia’s cousin in California: the San Andreas Fault. It gets all the scary glamour, with even a movie this year, “San Andreas,” dramatizing an apocalypse in the western U.S. Truth is, the San Andreas is a lightweight compared with the Cascadia. The Cascadia can deliver a quake that’s many times stronger — plus a tsunami.“