Why is it so hard to get people to safety? Effective warning systems are complicated, involve a lot of moving pieces, and ...

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

The series of earthquakes is the first major swarm of seismic events since 2009. Is it safe if you’re planning on visiting?

At least two people said on social media that they felt the earthquake, according to the U.S. Geological Survey.

More than 300 tremors were recorded below Mount Rainier over the course of three days. Scientists say they were too weak for ...

Hundreds of small earthquakes rattled one of the most dangerous volcanos in the US Tuesday, setting off fears it could be ...

A 5.7-magnitude earthquake and its aftershocks near Guatemala City led to landslides that were reported to have killed at ...

Two people died when huge rocks fell on their vehicle in Guatemala, after dozens of earthquakes were recorded in a matter of hours, authorities said. The two men killed were traveling in a pickup ...

A minor, 3.7-magnitude earthquake struck in Southern California on Thursday. It was followed by a larger, 4.3-magnitude quake ...

Volcanoes are rumbling as scientists monitor earthquakes at Washington's Mount Rainier and Alaska's Iliamna volcano.

A powerful 5.4-magnitude earthquake struck southern Spain early this morning, shaking buildings across more than 50 towns.

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