Scientists link a magnitude 6.5 earthquake that shook Humboldt Bay, California, 71 years ago to the "locked" Cascadia ...

A series of moderate to minor earthquakes struck near the geologically active area in Northern California known as The ...

Since Thursday, at least 131 earthquakes have been recorded — as small as magnitude 0.2 and as big as magnitude 4 — in the ...

More than 100 small earthquakes have been recorded near the Geysers geothermal field in Northern California since just after ...

Two earthquakes struck different parts of Northern California early Thursday morning, according to the U.S. Geological Survey ...

An earthquake swarm in Northern California early Thursday was another round of recurring temblors in a seismically active ...

A 3.6-magnitude earthquake struck Northern California near Walker in Mono County in South Lake Tahoe on Saturday morning, with no immediate reports of damage.

A moderate earthquake with an epicenter in Lake County gave portions of Northern California a new year’s rattle, according to seismologists. The earthquake occurred at 6:34 p.m. Pacific time and ...

An average of 25 earthquakes with magnitudes between 4.0 and 5.0 occur per year in California and Nevada, according to a recent three year data sample. The earthquake occurred at a depth of 6.7 miles.

After a 7.0 magnitude earthquake shook off the coast of Northern California on Thursday, it was followed by dozens of moderately strong and mild aftershocks, according to the U.S. Geological Survey.

Multiple earthquakes shook Southern California hours after a tremor was felt on the East Coast on Aug. 5, according to data ...