SAN RAMON, Calif. (AP) - Authorities say an earthquake has jolted the San Francisco Bay Area, making it at least the fourth small quake to hit the area in the past couple of days.
The U.S. Geological Survey says the quake with a preliminary 3.4 magnitude struck along the Calaveras Fault near the East Bay communities of San Ramon and Danville around 9:30 a.m. Wednesday.
USGS spokeswoman Leslie Gordon says the quake caused "weak to light shaking" in the area that could also be felt in other neighboring cities.
San Ramon Police say there have been no initial reports of damage or injuries.
Gordon says it was at least the fourth small quake to strike the region since Monday. This includes three small quakes on Tuesday, one in San Ramon and two more near Broadmoor.