The quake was reported about four miles northwest of The Geysers.
More than a dozen people reported feeling the shaking.
No damage or injuries were immediately reported.
For more stories, photos, and video on earthquakes, visit this page.
BLACK OAKS, Calif. (KGO) -- The USGS reports a magnitude 3.9 earthquake that struck near The Geysers in Sonoma County Saturday morning.
The quake was reported about four miles northwest of The Geysers.
More than a dozen people reported feeling the shaking.
No damage or injuries were immediately reported.
For more stories, photos, and video on earthquakes, visit this page.
The quake was reported about four miles northwest of The Geysers.
More than a dozen people reported feeling the shaking.
No damage or injuries were immediately reported.
For more stories, photos, and video on earthquakes, visit this page.