MENLO PARK (CBS SF) — The U.S. Geological Survey reported a 3.9-magnitude earthquake Sunday morning at The Geysers on the border between Sonoma and Lake counties.

The tremor was recorded at 10:41 a.m. about 70 miles north of San Francisco at an estimated depth of 2.5 miles, according to the USGS.

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The geothermal field where the quake struck is one of the most seismically active in Northern California. There were no immediate reports of damage.

COMPLETE QUAKE COVERAGE: CBS Earthquake Resource Center

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This article will be updated as information warrants, and follow KPIX 5 on Twitter at @CBSSF or KCBS Radio on Twitter at @KCBSNews for updates on breaking news anytime.

DID YOU FEEL IT?: USGS Shake Map For Northern California
LIVE QUAKE MAP: Track Real-Time Hot Spots
BAY AREA FAULTS: Interactive Map Of Local Faults

Strong earthquakes with an epicenter off the coast can trigger tsunamis, depending on the size and type of the fault movement. The Pacific Tsunami Warning Center tracks earthquake data for the West Coast.

Tsunami Alerts & Maps

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