Quake rocks San Francisco
An earthquake with a preliminary magnitude of 6.0 struck California's northern San Francisco Bay area early yesterday morning, the United States Geological Survey (USGS) said.
The earthquake struck just before 3:30 a.m. about 10 miles north-west of American Canyon, which is about six miles southwest of Napa, in California wine country, Leslie Gordon of the USGS said.
"It's the largest earthquake to shake the Bay Area since the 6.9 magnitude Loma Prieta quake in 1989," the USGS said.
The shaking set off car alarms and had residents of neighbouring Sonoma County running out of their houses in the middle of night. Officials say widespread power outages have been reported in Sonoma County.
A member of Napa County dispatch told The Associated Press that there has been one report of structural damage, but additional details weren't immediately available.
"It was a rolling quake," said Oakland resident Rich Lieberman. "It started very much like a rolling sensation and just got progressively worse in terms of length. Not so much in terms of shaking, but it did shake. It felt like a side-to-side kind of rolling sensation. Nothing violent, but extremely lengthy and extremely active."