3.1 magnitude earthquake struck Pinnacles Thursday afternoon; USGS
PINNACLES, Calif. (KION-TV) -- Thursday afternoon at 3:57 p.m., an earthquake registering 3.1 shook homes throughout Northern California.
The quake's epicenter was 7 miles northwest of the Pinnacles, with a depth of 4.0 miles, according to the U.S. Geological Survey (USGS).