An earthquake with a preliminary magnitude of 3.6 rattled the San Jacinto Valley on Friday morning. According to the U.S. Geological Survey, the quake struck at 9:43 a.m. The epicenter was about 6 ...

A magnitude-2.7 earthquake was reported Friday morning in the San Bernardino County community of Rialto. The quake was centered just north of Rialto and Fontana. Shaking was reported at about 9:30 a.m ...

A series of more than 100 earthquakes has hit Northern California, shaking up the Geysers geothermal steam field in Sonoma ...