The quake hit at about 4:30 a.m. The quake was centered 1.3 miles from Pacoima and 1.4 miles north-northeast of San Fernando, USGS said.
According to a USGS map, the shaking was felt over an area stretching from Palmdale to Anaheim, and from Ontario to Agoura Hills.
There were no immediate reports of damage or injuries due to the quake.