SONOMA COUNTY, CA - A preliminary 2.4 magnitude quake was recorded close to The Geysers around midday Thursday, the U.S.

SONOMA COUNTY, Calif. (KGO) -- A preliminary 3.9 magnitude earthquake shook the Sonoma County area Saturday morning. The quake was reported at 7:05 a.m. about 3 miles southeast of The Geysers, ...

SONOMA COUNTY, Calif. -- A 4.1 magnitude earthquake struck near Cobb Mountain in an area of unincorporated Sonoma County in Northern California early Wednesday morning, according to the United States ...

An earthquake with a magnitude of 3.4 struck northern Sonoma County Sunday afternoon. The quake's epicenter was recorded near the unincorporated area of Mercuryville, near the Sonoma and Lake county ...

A series of more than 100 earthquakes has hit Northern California, shaking up the Geysers geothermal steam field in Sonoma and Lake counties. Since Thursday, at least 131 earthquakes have been ...