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.