Study reveals how the tech behemoth is using the motions sensors on phones to expand quake warnings to more countries.

A seismologist from Seattle discussed recent volcanic activity across the United States. Here's what you should know.

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 ...

To see how a magnitude-9.0 earthquake would rattle the Pacific Northwest, researchers ran 50 virtual simulations on a supercomputer.

Officials are tracking the largest swarm of earthquakes in more than 15 years on Washington’s Mount Rainier but say there is ...

A swarm of earthquakes under the largest volcano in the Cascade Mountain Range has some people wondering if it's rumbling ...

An earthquake struck northwest of Seattle, Washington, near the U.S.-Canada border early Monday morning, officials said.

The earthquake originated about 11 kilometers off the coast of Maine, according to the USGS. What to know: 3.8 magnitude earthquake off York, Maine coastline rattles Seacoast Map: Where was the ...

SEATTLE — A new map released by the United States Geological Survey shows the likelihood of an earthquake causing damaging shaking in the next century.

University of Washington researchers published a study that mapped past landslides in the region to understand historical earthquakes along the Seattle Fault better.