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

A 2.0 magnitude quake was recorded close to Petrolia Friday morning, according to the U.S. Geological Survey. The tremor ...

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 ...

I’m the sole paddler I know of — or have ever heard of — who has surfed a tsunami. It took me more than 30 years to screw up ...

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

A series of more than 100 earthquakes has hit Northern California, shaking up the Geysers geothermal steam field in Sonoma ...

A large earthquake has struck in the Pacific Ocean off the coast of Guatemala and El Salvador, according to the U.S. Geological Survey.

The Cascadia Subduction Zone along the Pacific Northwest coast looms large in the scientific and public minds, as it has the ...

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

A massive earthquake along the Cascadia Subduction Zone could sink parts of the Pacific Northwest.