A magnitude 3.6 earthquake shook an area north of Los Angeles early Friday, one day after a series of quakes rumbled through the region.
There were no reports of injuries or damage from Friday's 3:21 a.m. quake, an aftershock to Thursday's temblors in the San Joaquin Valley about 70 miles northwest of Los Angeles.
The Thursday quakes began with a magnitude-3.4 jolt, which was quickly followed by a 4.7 quake, according to the U.S. Geological Survey in Pasadena.
There were also several lesser aftershocks.
"We felt it pretty good, like someone picked up the store and shook it," said Donald Sullivan, an employee at the Mettler Renegade truck stop and gas station.
The quakes happened near the White Wolf fault. The last time that fault caused a major earthquake was in 1952 when an estimated magnitude-7.5 quake killed 12 people and injured 18.