SONOMA COUNTY, CA - Friday morning, a preliminary 2.2 magnitude quake was reported close to Cobb, according to the U.S.
The most violent of the earthquakes was a magnitude 4.2 shaker that was centered about 2½ miles southeast of downtown San ...
CONTRA COSTA COUNTY, CA - According to the U.S. Geological Survey, a preliminary 2.3 magnitude quake occurred near San Ramon ...
USGS has reported several aftershocks in the area.
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