An earthquake with a preliminary magnitude of 6.0 struck the San Francisco Bay Area early Sunday, according to the U.S. Geological Survey.
The quake's epicenter was near American Canyon, but the reverberations were felt miles away, as far south as Santa Cruz. Initial reports said at least 25,000 residents — and as many as 50,000 — were without power after the quake struck around 3:30 a.m.
There are as yet no reports of fatalities from the quake.
It was the largest earthquake to hit the region since a magnitude 6.9 quake struck Loma Prieta in 1989, according to the local CBS affiliate.