The Spirit Lake drainage tunnel allows water to drain into Cold Water Creek, which connects to Cold Water Lake, and then ...

Deep beneath the surface of South America, a sleeping giant is starting to stir… and scientists are watching very closely. 🌋 ...

Researchers released a few garden pests into a barren landscape destroyed by a volcanic eruption in 1980s. It is now brimming ...

That all changed in 1980 when the volcano erupted, and the mountain's stature was reduced by approximately 1,300 ft. Mt. St. Helens now reaches 8,366 ft.

An earthquake 'swarm' comprised of hundreds of miniature earthquakes hit Mt. Rainier and the Cascade mountain in July.

This super-eruption might have pushed our ancestors to the brink of extinction, leaving lasting marks on the planet’s climate and human history.

Next up for Denise is an inaugural event in September called the Mt. St. Helens Classic, hosted by the Northwest Open Water Swimming Association (NOWSA).

A volcano erupted on Iceland's Reykjanes Peninsula, prompting evacuations in the surrounding area.

A swarm of hundreds of small earthquakes was reported at Mount Rainier starting Tuesday morning.

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