A minor earthquake with a preliminary magnitude of 3.4 struck Northern California on Tuesday, according to the United States Geological Survey. The temblor happened at 6:48 a.m. Pacific time about 5 ...

A preliminary 2.9 magnitude quake rattled near Santa Barbara Is. on Tuesday afternoon, the U.S. Geological Survey reported.

HUMBOLDT COUNTY, CA - A 2.2 magnitude quake occurred close to Eureka on Thursday afternoon, the U.S. Geological Survey reported.

Earthquakes hit Aromas and The Geysers on Thursday, followed by swarm activity, highlighting ongoing seismic activity in the ...

SONOMA COUNTY, CA - According to the U.S. Geological Survey, a preliminary 2.9 magnitude quake occurred close to The Geysers Wednesday morning. The tremor shook the region at 1:06 a.m. It occurred at ...

SONOMA COUNTY, CA - the U.S. Geological Survey reported that a preliminary 2.0 magnitude quake occurred near The Geysers Saturday afternoon. It was reported that a tremor shook the region at 3 p.m.

HUMBOLDT COUNTY, CA - A 2.4 magnitude quake was detected near Petrolia Friday afternoon, the U.S. Geological Survey reported. The tremor, which struck the region at 3:56 p.m., was centered about 28 ...

SAN BERNARDINO COUNTY, CA - According to the U.S. Geological Survey, a 2.2 magnitude quake occurred close to Yucca Valley Friday night. The tremor shook at 11:54 p.m., with its epicenter situated ...