WASHINGTON, USA — A "swarm" of small earthquakes near the summit of Mount Rainier Tuesday is no cause for concern, according ...

Slow-motion earthquakes, as you might guess from the name, involve the release of pent-up geological energy over the course ...

Trending News: The Cascadia Subduction Zone, dormant for over 300 years, poses a significant threat to the Pacific Northwest. A future earthquake, potentially magnit ...

A 700-mile fault could snap by 2075, sinking parts of Portland, Seattle & SF. The Cascadia megaquake may trigger a 100-ft ...

Seafloor sensors caught a rare slow quake in action. It hints at how Earth's stress is quietly released. For the first time, ...

Dengler noted that the earthquake was not unrelated to the Cascadia Subduction Zone but also said that Sunday’s tectonic activity “did diddly-squat” in terms of nudging us toward a massive 8 ...

In a scientific first, researchers have tracked the elusive motion of a rare variety of earthquake during a seismic event ...

New evidence suggests current estimates about tsunami size and how quickly waves make it to shore may be too high and too ...

Two small earthquakes struck the South Bay on Tuesday. The quakes hit less than two hours from each other. LOS ALTOS, Calif. ...

A new study does the difficult task of trying to piece together the history of the world’s largest subduction zone.