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

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

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

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

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

An earthquake registering magnitude 4.2 shook part of central California early Sunday, the United States Geological Survey ...

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.

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

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

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.

A 3.6-magnitude earthquake struck Northern California near the unincorporated community of Walker in Mono County on Saturday ...