A light, 4.7-magnitude earthquake struck in Northern California on Wednesday, according to the United States Geological ...
Your phone blares, "Earthquake ... what he's trying to do at the Pacific Northwest Seismic Network. In the meantime, Tobin and other researchers are working to map the fault's structure.
So, think magnitude eights, and magnitude nines, which is the size of earthquake we’re expecting to have in the Pacific ...