A magnitude 3.4 earthquake struck Saturday morning north of The Geysers, with weak shaking reported in parts of Lake and ...

An earthquake has struck California as experts warn that the long-feared “Big One” could be approaching. The US Geological ...

In short, the United States and the entire world are safer from earthquakes thanks to 20 years of testing life-sized buildings and other large structures at UC San Diego’s large, outdoor earthquake ...

UC San Diego is preparing to use its outdoor shake table in Scripps Ranch to determine whether 10-story buildings made of ...

A 2.4-magnitude earthquake hit near Atascadero at 6:31 a.m., according to the U.S. Geological Survey. The quake hit in the ...

RIVERSIDE COUNTY, Calif. - An earthquake with a preliminary magnitude of 3.6 rattled near Riverside County on Wednesday ...

A 3.2-magnitude earthquake struck near Idyllwild in Riverside County on Wednesday, according to the U.S. Geological Survey. The quake was reported around 12:27 p.m. with a depth of nine miles.

A minor earthquake struck Concord shortly after noon on Friday and was felt across the East Bay, according to the U.S.

A minor earthquake occurred roughly 5 miles southwest of Idyllwild at around 12:27 p.m., Wednesday, June 4, the U.S. Geological Survey reported. The agency initially classified the earthquake as being ...