A minor, 3.7-magnitude earthquake struck in Southern California on Thursday. It was followed by a larger, 4.3-magnitude quake nearby a few hours later, according to the United States Geological ...

The USGS reports that 240 small earthquakes occurred near Westmorland, California, between 4 p.m. local time Wednesday evening into 8 p.m. local time Thursday morning.

LOS ANGELES -- A powerful 7.1 earthquake shook Southern California, cracking buildings, breaking roads and causing power outages on Friday, just one day after a magnitude 6.4 hit the same general ...

Three more earthquakes struck the same spot at the southern tip of the Salton Sea between 4:18am and 4:22am. Each quake was greater than 2.5 in magnitude, stronger enough for people to feel and ...

The magnitude 5.1 earthquake hit around 2:41 p.m. Sunday about four miles southeast of Ojai, just as Southern California was being hit by remnants of Hurricane Hilary.

RIDGECREST, Calif. -- Thousands of earthquakes have been recorded in Southern California since Thursday's initial 6.4 magnitude temblor, according to seismologist Dr. Lucy Jones.

SAN GABRIEL VALLEY (KABC) -- A 3.2-magnitude earthquake rattled the Sierra Madre area Thursday afternoon, according to the USGS. The quake was recorded just after 3 p.m. about 4 miles from Sierra ...