A magnitude 3.1 earthquake was reported less than a mile south of Ontario International Airport early Wednesday afternoon, ...

A 3.5-magnitude earthquake shook the Southern California area, the U.S. Geological Survey reported. The about 3-mile deep ...

Saturday's earthquake was the seventh of magnitude 3 or greater since Sept. 12, when a magnitude 4.7 earthquake just north of ...

Some Northern California residents woke up to 3.6 magnitude earthquake Saturday morning, according to the United States ...

AROMAS, Calif. -- An earthquake registering magnitude 4.2 shook part of central California early Sunday, the United States ...

Faced with the prospect of an extensive, and expensive, seismic safety retrofit for its 1960s-era downtown headquarters, L.A.

An earthquake shook communities in Central California on Tuesday, according to the U.S. Geological Survey. The magnitude 4.0 ...

SAN DIEGO — California’s largest earthquake insurance carrier, California Earthquake Authority, will be raising its rates at the beginning of next year by 6.8% on average.

Shaking was reported in communities east of Los Angeles early Tuesday afternoon due to a magnitude-3.1 earthquake in Ontario.

SAN FRANCISCO – A magnitude 4.2 earthquake rocked areas south of San Francisco in California early Sunday morning. According ...

A magnitude-3.1 earthquake centered about two miles southeast of Ontario struck at 12:56 p.m. on Tuesday, Oct. 1, the US ...

A 3.5-magnitude earthquake struck near Ontario, California; no significant damage or injuries have been reported.