By tracking swarms of very small earthquakes, seismologists are getting a new picture of the complex region where the San Andreas fault meets the Cascadia subduction zone, an area that could give rise ...
A light, 4.7-magnitude earthquake struck in Utah on Thursday, according to the United States Geological Survey. The temblor ...
A light, 4.9-magnitude earthquake struck in Southern California on Monday, according to the United States Geological Survey.
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