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 ...

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 major California fault once thought to be stable is quietly shifting beneath neighborhoods, schools, and it could lead to a ...

A Spanish holiday hotspot loved by Brits has been rocked by an earthquake as buildings shake in over 50 towns. It was just ...

What is Mount Rainier? Mount Rainier is an active volcano and national park in the state of Washington. It rises more than 14,000 feet above sea level and sprawls over five major ...

A 4.3-magnitude earthquake jolted a lake shoreline Friday, July 11, in Southern California, the U.S. Geological Survey reported. Then dozens of smaller quakes followed. The 6.5-mile-deep quake hit ...

Among the most dramatic scenes was the partial collapse of a roof at Almería Airport. According to eyewitness reports, the structure gave way suddenly as workers were starting their shifts. “We heard ...