Volcanoes are rumbling as scientists monitor earthquakes at Washington's Mount Rainier and Alaska's Iliamna volcano.

Scientists are on high alert after a series of earthquakes struck Mount Adams, the largest active volcano in Washington state. The volcano, known for its potential to trigger landslides and ...

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

Mount Adams in Washington state is seismically calm. But a flurry of earthquakes around the volcano has garnered attention from observers wondering whether it will blow.

The U.S. Geological Survey said it and other agencies were monitoring the situation and would issue additional alerts "as ...

A spike in earthquakes at Mount Adams, a volcano in Washington state, prompted scientists to install additional monitoring instruments to assess the seismic activity.

A normally quiet “high threat” volcano in Washington state has been shaking at a record rate — prompting an alert from geologists who ultimately said there’s little chance it will erupt soon.

From 1975: A geologist from Eastern Washington State College returned from a research trip and warned that one of Washington’s volcanoes “could blow suddenly and take us by surprise.” ...

Scientists are installing new temporary monitoring equipment around Mount Adams in Washington state amid a spike in seismic activity under the volcano.