A 6.0-magnitude quake jolted the Bay Area early Sunday morning, injuring at least 70 people, and causing some road closures, water main breaks and fires and damaging at least one building in the Napa Valley.
The quake struck near southwest of Napa at 3:20 a.m. causing houses to shake in the center of San Francisco and knocking out power to more than 50,000 houses.
USGS said the quake struck about 10 miles northwest of American Canyon, which is located about 6 miles southwest of Napa. Most reported damage has been confined to Napa and Sonoma areas. At least 20 aftershocks were felt, including a magnitude 3.6 aftershock four miles southwest of Napa. About 30 to 70 small aftershocks are expected over the next seven days, the USGS said on Twitter.
“I was at work when it happened,” said David Lew, who works at a casino in American Canyon. “A lot of broken glass everywhere. My absolute first thought was getting in touch with my wife, who is five months pregnant.”
The Queen of the Valley Hospital in Napa has admitted 70 patients but their injuries are not expected to be serious. Napa Fire is reporting two major injuries related to the earthquake, according to The Associated Press.
California Highway Patrol (CHP) said most of the damage is cracks in roads, especially on Highway 121 and 209. An office building in Napa was dechunked.
NBC Bay Area’s chopper footage over downtown Napa showed a mobile home park on fire at Orchard Avenue and a gaping hole near the top corner of the old courthouse. At least four mobile homes have been destroyed, and 50 gas line breaks have been reported, according to Napa County Emergency Services.
Water treatment plants are operational and unharmed, though 30 water main breaks have been reported.