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 ...
A magnitude 3.1 earthquake was reported less than a mile south of Ontario International Airport early Wednesday afternoon, ...
A 3.2-magnitude earthquake struck off the coast of Malibu Saturday afternoon, according to the U.S. Geological Survey.