CONTRA COSTA COUNTY, CA - Thursday afternoon, a preliminary 2.5 magnitude quake was detected close to Lafayette, according to ...
An earthquake is caused by a sudden slip on a fault, according to USGS. Tectonic plates are always slowly moving, but they get stuck at their edges due to friction. When the stress on an edge ...
According to the U.S. Geological Survey, a preliminary 2.3 magnitude quake struck near El Sauzal, B.C. Friday night.
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