SAN FRANCISCO – Was that an earthquake you just felt or merely a big truck rumbling by? You don't have to wonder – the U.S. Geological Survey is on the case and can almost immediately tell you whether ...
Just off the coast of the Pacific Northwest is the Cascadia Subduction Zone, a complex collection of earthquake faults created by one tectonic plate pushing its way under another. Every 400-600 years, ...
The disaster caused by a predicted large earthquake in the Pacific Northwest could be compounded by shaking along the San Andreas fault in California, scientists warned. By Sarah Scoles In the world’s ...