314 years ago Sunday, a megathrust earthquake devastated the region … ready for another?
Never missing the opportunity to scare the living daylights out of us, earthquake experts in Washington remind us that this past Sunday was the 314th anniversary of the last megathrust quake in the Cascadia Subduction Zone that would have wiped out a big part of Seattle and the infrastructure of the region had we all been there.
In this video an introduction to seafloor spreading, subduction and megathrust earthquakes are animated to allow for easier understanding of the topics using the Cascadia Subduction Zone (Juan de Fuca plate is being subducted under the North American Plate) as an example.
And we are due for another one. So, the Cascadia Region Earthquake Workgroup has updated its scenario document for what that magnitude of quake would do to us now. And it doesn’t look so great! (SOURCE)