(CNN) — A preliminary 6.0-magnitude earthquake hit the northern San Francisco Bay area early Sunday, the U.S. Geological Survey said.
The quake struck six miles southwest of Napa and nine miles from Sonoma, according to the USGS.
There were no immediate reports of injuries
Napa County Fire Capt. Jim Christenson said his units were driving around looking for damage.
“So far at the fire house we lost a fish tank and some glassware,” he said.
A dispatcher for the Napa County Sheriff’s Office said there was some water damage. She declined to provide additional details, saying she’s not authorized to talk to the media.
CNN’s Augie Martin, who lives in San Francisco described the earthquake as “the softest, most rolling 6.0 earthquake I’ve ever felt. It was obvious — no doubt. But living in the city proper, it was more of a roller than a sharp jolt.”