San Francisco wakes up to 4.2 quake
SAN FRANCISCO -- The San Francisco area experienced a 4.2-magnitude earthquake early Friday that caused minimal damage, but left about 2,000 customers without electrical power.
The U.S. Geological Survey defines a 4.2-magnitude quake as "light," CNN reported.
"We had quite a spike in calls, mostly calls of inquiry, none of any injury, none of any damage that was reported," Capt. Al Casciato of the San Francisco police told the cable news network. "It was fairly mild."
The quake was centered in the Oakland Hills and 3.6 miles deep, the U.S. Geological Survey said.
Oakland is just east of San Francisco, across San Francisco Bay.
Describing the event as a "shallow tremblor," the Oakland Tribune said the shaking lasted about 50 seconds and did little more than wake folks up, set off alarms, knock items off shelves and leave wall hangings a bit askew.
An early online survey suggested the rattling was most intense in the hills, with residents within 10 miles of the epicenter in Moraga, Orinda, Oakland and Alameda reporting light to moderate shaking.
However, some residents felt the disturbance as far away as Sebastopol, Napa, even Guerneville.
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