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Showing posts with label Subduction. Show all posts
Showing posts with label Subduction. Show all posts

Sunday, May 03, 2015

Geological Cataclysms - The Cascadia Earthquake of 1700

This is another successful and impressive geological detective story.

The largest earthquakes in the world occur at subduction zones.  A subduction zone is where one continental plate is being pushed underneath another.  Only a subduction zone can generate an earthquake greater than magnitude 8.5 (a "great earthquake")