This 2023 satellite photo shows the heart-shaped Spirit Lake, which was transformed by the cataclysmic eruption of Mount St.

David A. Johnston was killed just hours after his last ever picture was taken. The volcanologist from Chicago, US was once ...

A volcano near Alaska’s most populous city may be preparing to erupt, according to experts who have been monitoring the ...

The volcanic elevation ... have been observed in the past at Mount St. Helens and at other volcanoes and can continue for ...

When most of us think about active volcanoes in the U.S., Mount St. Helens, Mt. Rainier and a few others will first come to mind. However, one of the most active volcanoes in the region is about a ...

A teenager when he began scuba diving in the shadow of Mount St. Helens, he remembers the lake as it was before the May 1980 eruption, before the top 1,300 feet of the volcano—more than three ...

high level volcanic explosions do happen, as was the case with Mount Saint Helens in Washington state, which became the most deadly and destructive eruption in American history. The Mount St ...

Lahars are very destructive volcanic mudflows that can swallow everything in their paths. During the Mount St. Helens eruptions, lahars flowed up to 60 miles destroying 200 homes. Lahars are one ...

With eruptions in 1998, 2011, and 2015, the volcano serves as a perfect laboratory, and experts expect an eruption by the end ...