The second of two earthquakes over a 24-hour period was detected near Winnsboro in Fairfield County this morning.

Two regions shaken: A 4.2 quake hit The Geysers in Sonoma County, and a 3.3 tremor struck near Redlands in San Bernardino County on the same date. Communities felt it: Residents in multiple nearby ...

The USGS primarily received citizen reports from throughout San Francisco of residents feeling light shaking from both quakes ...

Multiple earthquakes shook parts of Imperial County Saturday afternoon, including Brawley, Holtville and Ocotillo.

Two small earthquakes felt in Monroe County have residents asking if bigger shakes are coming. Scientists say Southeast ...