Hundreds of earthquakes have been detected at Mount Rainier so far Tuesday morning in the largest such swarm at the active ...

Mount Rainier saw a swarm of hundreds of small earthquakes that started early Tuesday morning.The activity began just before ...

The last time Mount Rainier experienced a swarm of this size was in 2009, when hundreds of earthquakes occurred over a ...

A swarm of small earthquakes was detected beneath Mount Rainier on July 8, 2025, but officials say there is no current threat of an eruption.

A new report from the Department of Natural Resources estimates that a volcanic mudflow, known as a ‘"lahar," from Mount Rainier could produce property losses of up to $6 billion to communities ...

Mount Saint Helens, Mount Adams, Mount Baker, and Glacier Peak are four of the active volcanoes in Washington state. The fifth, located less than 70 miles from Seattle, is Mount Rainier.

Though the lahars from Mount Rainier likely won’t reach Seattle, Terbush said “it's important to know and understand these hazards and how you can prepare for them, such as knowing your ...

When you try to look at the volcanoes of the United States with these lenses, a list can begin to form. The US Geological Survey publishes a "Threat Assessment" for US volcanoes, the last one in ...

Below the ice cap at Mount Rainier’s summit lies a network of otherworldly ... The ’70s-era map tallied more than a mile of ... Gen. Hazard Stevens and Philemon Van Trump crested the ...

A cloud formation seen over Washington's Mount Rainier led to speculation on social media about the active volcano venting. Park experts assured that it was not.