SAN FRANCISCO — Two separate quakes at or near magnitude-4.0 hit Northern and Southern California on Sunday, with no immediate reports of damage or injuries.

An earthquake measuring 3.6 in magnitude struck Sunday afternoon less than 1 mile south of the San Francisco Bay Area suburb of Concord, the U.S. Geological Survey said. Concord police dispatchers said there appeared to be no damage or injuries. The U.S. Geological Survey’s website recorded more than 4,400 reports from Bay Area residents who felt the shaking.

The Northern California quake occurred on the Concord-Green Valley fault, one of several in the area that seismologists say are capable of producing major earthquakes.

A magnitude-3.8 earthquake jolted some residents in the greater Los Angeles area awake when it struck at 4:07 a.m. It was centered a mile northwest of the View Park-Windsor Hills neighborhood, just north of Inglewood and Culver City.

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