The quake hit 6 miles north-northeast of Rancho Cucamonga at 6:23 a.m. PT, according to the U.S. Geological Survey.
There were no immediate reports of injuries or damage.
The quake hit 6 miles north-northeast of Rancho Cucamonga at 6:23 a.m. PT, according to the U.S. Geological Survey.
There were no immediate reports of injuries or damage.