A magnitude-4.0 earthquake rattled parts of Southern California early Sunday morning.  The quake near Ontario was reported ...

A magnitude 4 earthquake rattled Southern California before dawn Sunday morning — the strongest in a series of modest ...

A 4.1-magnitude earthquake near Ontario shook parts of Southern California on Sunday morning, Oct. 6, the U.S Geological ...

An earthquake with a magnitude of 4.0 rattled the Inland Empire early Sunday morning, shaking homes and businesses and waking ...

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

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 ...

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

A 4.0-magnitude earthquake near Ontario shook the Los Angeles area in California, the U.S. Geological Survey reported. The ...

A 4.0 earthquake hit near Ontario, CA, felt across the region with minor aftershocks; no significant damage reported.

LOS ANGELES - A magnitude 4.0 earthquake followed by several aftershocks struck Southern California Sunday morning, according ...