Mount Rainier was experiencing "the most significant seismic activity" at the volcano in more than 15 years as an "earthquake ...

Tectonic plates are massive slabs of Earth's lithosphere that float atop the semi-fluid mantle, constantly shifting and ...

Hundreds of small earthquakes have rattled Mount Rainier this week in the largest swarm of tremors in more than a decade.

These 10 U.S. states experience the highest number of earthquakes, shaking their ground quietly yet consistently, reminding ...

TOKYO: Japan has warned of a 70–80% chance of a magnitude 8–9 earthquake along the Nankai Trough within the next 30 years, ...

Hundreds of small earthquakes were detected at Mount Rainier on Tuesday in the largest such swarm at the active stratovolcano ...

In Japan, swarms of earthquakes are fueling a dip in tourism and a viral panic over predictions of the next 'big one' ...

MT. RAINIER, Wash. — A swarm of small earthquakes was detected at Mount Rainier Tuesday morning, according to the U.S. Geological Survey Cascades Volcano Observatory (CVO) and the Pacific Northwest ...

Hundreds of earthquakes are detected at or near Mount Rainier each year, though typical swarms are smaller than what started ...

Mount Rainier, the active volcano towering above southwestern Washington state, started rumbling — very lightly — on Tuesday.