An earthquake of magnitude 4.1 rocked the region of the Bay of San Francisco awake early Thursday

Said the US Geological Survey. The USGS said the earthquake had struck at 5:07 a.m. 

and was centered for several kilometers north-west of Bay Point, California,

about 21 miles northeast of Berkeley and 30 miles northeast of the east of the downtown San Francisco.

It was located at a depth of about 12 miles. According to the Shake USGS card, 

tremors were felt throughout the Bay region and the Metropolitan region of Sacramento. 

More than 4,000 people said they felt the earthquake at 7:30 a.m. PST. The reports generally indicate light or low intensity.

Magnitude 6.2 The earthquake strikes northern California, causing "moderate to strong jolts"

Magnitude 6.2 The earthquake strikes northern California, causing "moderate to strong jolts"

Magnitude 6.2 The earthquake strikes northern California, causing "moderate to strong jolts"

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