Volcanoes across several US states have recently become active, while no immediate danger is reported, experts remain watchful as seismic activity continues.

The so-called earthquake swarm at Mount Rainier dwindled Friday but has surpassed the last large event at the volcano in 2009 ...

The most recent seismic storm at Mount Rainier has hit a new milestone as scientists continue to monitor activity at the ...

A swarm of earthquakes under the largest volcano in the Cascade Mountain Range has some people wondering if it's rumbling ...

Hundreds of small earthquakes rattled one of the most dangerous volcanos in the US Tuesday, setting off fears it could be ...

This is a repost from the archives, an older post by Henrik which has been updated to reflect more recent findings. Did you know there are 255 volcanoes or volcanic features listed in the US?

A fire has destroyed the largest wooden trestle of the Mt. Rainier Scenic Railroad, jeopardizing the organization's historic railway restoration project.

"Mount Rainier may be one of the most iconic volcanoes in the U.S., but it's also considered the most dangerous. In this video, we dive into why Mount Rainier poses such a significant threat, from ...

Mt. Rainier is shorter than we all thought … 10 feet shorter. New GPS measurements measure the new peak, a rocky patch along the Southwest rim, at 14,399.6 feet. Rainier’s old ice cap peak ...

Mount Rainier is central to Tacoma’s identity, so much so that it appears on the city’s logo. But as CNN recently reported, the striking mountain is also an active volcano — and no one knows ...

Certain cities in Pierce County would be seriously harmed by lahar flow, such as Orting and Puyallup. Part of Tacoma would also be affected.