Was that an earthquake you just felt or merely a big truck rumbling by? You don't have to wonder thanks to the U.S.

A worldwide Android smartphone-based earthquake detection and early warning system can detect seismic activity in real time.

A lightly populated stretch of Alaska’s southern coast was under a tsunami warning after the magnitude 7.3 quake was felt ...

California officials overseeing the $21 billion fund that was expected to protect utilities and their customers from the cost ...

A 4.3-magnitude earthquake jolted a lake shoreline Friday, July 11, in Southern California, the U.S. Geological Survey ...

ANCHORAGE, Alaska (AP) — Communities along a 700-mile stretch of Alaska’s southern coast ordered residents to higher ground ...

In California, where the next “Big One” is an always-looming threat, some lessons learned from the 1925 Santa Barbara quake resonate even 100 years later, experts say.

A minor, 3.7-magnitude earthquake struck in Southern California on Thursday. It was followed by a larger, 4.3-magnitude quake nearby a few hours later, according to the United States Geological Survey ...

A 3.3-magnitude earthquake hit Northern California Monday evening near Los Banos, about 30 miles from San Jose. No damage reported from minor temblor.

The goal is to determine whether it’s safe to build taller structures using cold-formed steel — a strong, lightweight, ...

Alaska was jolted by a 7.3-magnitude earthquake on Wednesday afternoon. Tsunami information was not immediately available.