A major earthquake shook the Los Angeles area in the middle of the morning rush hour on Thursday.The exact measure of the earthquake remains unknown, according to the United States Geological Survey.The USGS says the quake originated roughly 6 kilometers north of Malibu.

A magnitude-4.0 earthquake rattled parts of Southern California early Sunday morning. The quake near Ontario was reported at 3:51 a.m.. Shaking was reported in parts of Los Angeles, Whittier, Culver City, Redondo Beach, Torrance and Santa Monica, the San Fernando and San Gabriel valleys and other areas.

LOS ANGELES - A magnitude 4.0 earthquake followed by several aftershocks struck Southern California Sunday morning, according to the U.S. Geological Survey. The quake was reported about 4.3 miles southeast of Ontario at 3:51 a.m. It had a recorded depth of 5.2 km. There were no immediate reports of damage or injuries.

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

A magnitude-3.1 earthquake centered about two miles southeast of Ontario struck at 12:56 p.m. on Tuesday, Oct. 1, the US Geological Survey said. The earthquake was felt in Victorville, Riverside, Los Angeles, Long Beach, Mission Viejo and Oceanside, among other locations, according to the USGS intensity map .

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

A preliminary 4.0-magnitude earthquake struck near Ontario this morning, according to the U.S. Geological Survey.