Friday's earthquake struck along the Bay Area's Calaveras Fault, which runs east of the widely-known San Andreas Fault.
Both quakes struck near San Martin; the first one was recorded at 12:35 p.m., the U.S. Geological Survey said.
DRIVER HAVE NOT BEEN RELEASED TO CALAVERAS COUNTY. NOW, WHERE A COMMUNITY IS IN MOURNING AFTER A CALAVERAS COUNTY FIREFIGHTER DIES IN A CAR CRASH, AUTHORITIES ARE STILL INVESTIGATING EXACTLY WHAT ...