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

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

An earthquake with a preliminary magnitude of 3.1 struck in Colusa County on Wednesday, the U.S. Geological Survey said.

MONTEREY COUNTY, CA - A 2.5 magnitude quake was registered near New Idria Saturday evening, the U.S. Geological Survey ...

COLUSA COUNTY, CA - According to the U.S. Geological Survey, a preliminary 3.1 magnitude quake occurred near Maxwell ...

The Diablo Canyon nuclear plant is in the midst of a relicensing process that, if successful, will keep it running for ...

A 5.7-magnitude earthquake struck the Drake Sea near Puerto Williams, Chile, in the early hours of Tuesday. Alarms were ...

A stretch of unusually hot weather combined with exceptionally dry vegetation will elevate the risk of wildfire.

Earthquakes can wreak havoc on day-to-day life if you're on the ground, but is there any threat to those who are in an ...

Californians can now apply to the California Earthquake Authority's Brace + Bolt grant program, which gives money to ...

The government body tasked with allocating funds for state road repairs announced a big influx of cash for projects in ...

In March, the observatory said it had measured “significantly elevated volcanic gas emissions" from Mount Spurr and said ...