Scientists are holding their breath as hundreds of earthquakes rattle one of America's most dangerous volcanoes, which loom ...

A massive volcano has shown critical signs that an eruption could be coming soon, but experts have said that there may be no way of telling when it'll blow.

Yellowstone, a popular tourist destination and namesake of an equally popular TV show, was the first-ever national park in the United States. And bubbling beneath it—to this day—is one of Earth's most ...

An earthquake 'swarm' comprised of hundreds of miniature earthquakes hit Mt. Rainier and the Cascade mountain in July.

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