A preliminary 2.3 magnitude quake was detected near Petrolia Saturday afternoon, according to the U.S. Geological Survey.

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

Lori Dengler was part of a “cold case” team looking at the Dec. 21, 1954 earthquake with new eyes and new technology.

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 ...

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