Quake hits California

An earthquake with a preliminary magnitude of 6.0 has been reported in northern California’s San Francisco Bay area, officials said.

An earthquake with a preliminary magnitude of 6.0 has been reported in California’s northern San Francisco Bay area, officials said.

The tremor struck at just before 3.30am local time about 10 miles north west of American Canyon, which is about six miles south west of Napa, said Leslie Gordon, of the US Geological Survey (USGS).