US’ Mount Rainier has unprecedentedly entered a 72-hour long and extreme tremor phase, raising the eruption warning and ...

Washington state may not have to worry about hurricanes, but it is volcano country. The United States has 161 active volcanoes – all in the western U.S. – but only 18 are classified as a "very high ...

More than 800 earthquakes have rattled Washington's Mount Rainier in the last 30 days, sparking fears that one of America's most dangerous volcanoes is coming to life. More than half of the quakes, ...

A recent earthquake swarm at Mount Rainier in Washington state, along with increased volcanic activity in Alaska, Oregon, and Hawaii, has captured the news media's attention and sparked questions ...

PORTLAND Ore. (KPTV) - All volcanoes in the Cascade Range are showing normal activity levels, according to the United States Geological Survey on Friday. Mount Rainier experienced its largest ...

Around the globe, volcanic giants continue their relentless dance with destruction and creation. These geological time bombs don't respect borders, holidays, or human plans. While most of us go about ...

Some Pacific Northwesterners woke Tuesday to an unusual sight: A smoky haze shrouded Mount St. Helens, the large, active stratovolcano in Washington state that erupted catastrophically in 1980. But a ...

While you might associate volcanic eruptions with distant lands, numerous active volcanoes across America could potentially erupt tomorrow. The Yellowstone Caldera is not just a tourist hot spot; it’s ...

On July 8, Mount Rainier began to stir. Seismic activity occurs at all of the Pacific Northwest’s Cascade Volcanoes to some extent, but this time was different. What began as a few faint tremors soon ...

The scientists used a climate model to simulate eruptions that injected up to 160 million tonnes of sulfur into the stratosphere. The largest volcanic event of the past 6,000 years was the eruption of ...