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, ...

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

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

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

A 3.2-magnitude earthquake struck off the coast of Malibu Saturday afternoon, according to the U.S. Geological Survey.

An earthquake measuring 4.2 in magnitude struck central California early Sunday morning, according to reports from the United ...

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

People near California's coast were shaken overnight after a 4.2 magnitude earthquake shook Monterey and San Benito counties.

A magnitude 4.2 earthquake struck central California early Sunday, near Aromas, about 94 miles south of San Francisco. The ...

LOS ANGELES COUNTY, Calif. - A preliminary 3.2 magnitude earthquake struck more than five miles off the Malibu coast Saturday ...