DHAKA: An earthquake with a magnitude of 6.0 has shaken northern California, reports the US Geological Survey.

The USGS said it struck at 03:20 local time (10:20 GMT) four miles north-west of American Canyon, at a depth of 6.7 miles.

Dozens of people were injured in the Napa area, at least two seriously.

The site is 51 miles from Sacramento and about 30 miles north-east of San Francisco, where many Twitter users say the earthquake woke them up.

Officials in Napa said in a statement that the quake had destroyed four mobile homes and caused ‘approximately 50’ gas main breaks and around 30 leaks from water mains.

Three historic buildings in the town had been hit and two commercial buildings ‘severely damaged’, the statement went on, reports the BBC.

More than 10,000 households were without power in Napa County, about six miles from the earthquake's epicentre, and the surrounding area, the Pacific Gas and Electric Company said.

The California Highway Patrol in the San Francisco Bay Area tweeted that it was ‘checking over crossings and bridges for obvious signs of structural integrity’ and asked residents to report any signs of problems.

BDST: 2223 HRS, AUG 24, 2014