SAN RAMON — A cluster of earthquakes struck the San Ramon area Friday night, continuing a pattern of seismic activity in ...

SANTA CRUZ COUNTY, CA - A preliminary 2.1 magnitude quake was recorded near Corralitos on Wednesday around midnight, the U.S. Geological Survey reported. The tremor, which struck the area at 12:23 a.m ...

SANTA CRUZ — At 5:04 p.m. on Oct. 17, 1989, the 6.9 magnitude Loma Prieta earthquake shook Santa Cruz County and those around it from its epicenter beneath the Forest of Nisene Marks State Park ...

Shaking was felt in areas such as Petaluma and Rohnert Park, but no damages or injuries were reported immediately after the ...

The San Jacinto Fault, considered part of the San Andreas Fault system, has a 5% chance of magnitude 6.7 or larger earthquakes. The line begins at Cajun Pass and runs southeast through San Bernardino, ...

A preliminary 4.2 magnitude earthquake struck Santa Cruz County early Sunday morning, according to the United States Geological Survey. The quake, which hit at about 2:53 a.m., was centered about 3 ...