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 ...

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

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 ...

What lies beneath Fickle Hill in northern California? Maybe the answer to an earthquake mystery that has puzzled seismologists for decades.The origin ...

The recent earthquake is a reminder of the seismic volatility that characterizes the area near Eureka. The quake occurred in the vicinity of the Mendocino Triple Junction, a highly active seismic zone ...

On Monday afternoon, a minor offshore earthquake measuring 2.8 magnitude struck 76 kilometers west-northwest of Petrolia, California. This tremor, occurring at 10:24 a.m. PDT (17:24 UTC), was recorded ...

Experts have issued an urgent warning regarding a supposed upcoming earthquake known as 'The Big One'. Scientists explained that the earthquake could have a magnitude of around 7.7 on the Richter ...

NORTHERN CALIFORNIA (KABC) -- An earthquake with a preliminary magnitude of 5.7 struck 17 miles west of Petrolia in Northern California on Wednesday. The quake hit shortly after 1 p.m. about 25 ...

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