VENTURA COUNTY, CA - A preliminary 2.3 magnitude quake was recorded close to Fillmore Monday morning, according to the U.S.

A swarm of at least six earthquakes reaching up to magnitude 2.9 rattled San Ramon near San Francisco, the U.S. Geological ...

Shaking was felt in areas such as Petaluma and Rohnert Park, but no damages or injuries were reported immediately after the ...

HUMBOLDT COUNTY, CA - According to the U.S. Geological Survey, a preliminary 2.7 magnitude quake occurred close to Petrolia ...

A magnitude 4.0 earthquake was reported Sunday afternoon at 3:30 p.m. three miles from Santa Rosa, according to the U.S.

Geologist Kirt Kempter tells the 300-million-year story of the Abiquiú area while exploring the boundary between the Rio ...

Did you feel it? Preliminary magnitude 3.2 earthquake struck near Colma in San Mateo County Friday evening, the U.S.

A preliminary 4.0-magnitude earthquake struck California’s Sonoma County on Sunday afternoon, according to the US Geological ...

A preliminary 4.1 magnitude earthquake struck Sunday afternoon near Glen Ellen in Sonoma County, according to the United States Geological Survey.

Sonoma County was hit by three earthquakes within a little more than half an hour Sunday, the largest one having a ...

Three earthquakes rocked Sonoma County on Sunday afternoon. The first quake struck at 3:30 p.m. just east of Rohnert Park and was recorded with a magnitude 4.0, according to the U.S. Geological Survey ...