Seismologists are closely monitoring Mount Rainier after a swarm of earthquakes struck the Pacific Northwest’s tallest ...

Hundreds of earthquakes have been rattling Mount Rainier over the last two days, marking the largest swarm since 2009.

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

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

Mount Kilauea erupted to life Wednesday as one of the world's most active volcanoes makes headlines once again.

Swarms — or clusters of earthquakes that occur in the same area in quick succession — are relatively common on Mount Rainier.

More than 400 earthquakes rattled Washington's Mount Rainier over just 12 hours on Tuesday, sparking fears that the ...

The earthquakes are not currently a cause for concern, and do not indicate an impending eruption, the U.S. Geological Survey ...

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 ...

One of the most famous mountains in Washington, Mount Rainier, has been rumbling over the last day due to the amplified ...