Magnitude 3.0 earthquake hits Contra Costa County, USGS says

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Monday, September 14, 2026 2:04PM

PINOLE, Calif. (KGO) -- An earthquake with a magnitude of 3.0 struck in Contra Costa County, southwest of Brentwood at 6:47 a.m. Monday, the U.S. Geological Survey said.

The quake measured at a depth of about 10 miles.

The closer to the surface an earthquake starts, the more ground shaking and potential damage it will cause.

MORE: Odds of major earthquake striking Bay Area in next 30 years increasing, experts say

The quake struck roughly 5.5 miles southwest of Brentwood.

A 2.6 magnitude earthquake hit the same area on Sunday afternoon.

MAP: Significant San Francisco Bay Area fault lines and strong earthquakes
Zoom in on the map below and compare where you live to the significant faults and where strong earthquakes have struck in the Bay Area.

Stay with ABC7 News for the latest details on this developing story.

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