The sediment retention dam in Toutle has become less and less effective as it fills, switching from catching about 80% of ...

A snowboarder died while standing near the top of Mount St. Helens on March 30. The Northwest Avalanche Center (NWAC) said the death was the result of a cornice fall. The snowboarder summited the ...

One of the most violent natural disasters of our time, the colossal eruption of Mt. St. Helens in 1980 blasted away an entire mountainside. Over 200 square miles of pristine forest were buried ...

“High rates of seismicity, interpreted as recharge, have been observed in the past at Mount St. Helens and at other volcanoes ...

A very common case study for volcanoes is the eruption of Mount St Helens in the USA in 1980. Other case studies include the eruption of Mount Etna in Sicily in 1974 and Heimaey eruption in ...

Recent increased seismic activity at Mt. Adams has brought state, tribal, and federal leaders together to reassess their ...

Mount St. Helens has recently been swarming with geological activity, which could mean the giant American volcano is gearing up for its next big eruption. Produced by Zach Wasser and Dave Mosher.

Similarly, the 1980 eruption of Mount St. Helens-just 50 miles from Mount Rainier-triggered a lahar that destroyed over 200 homes and contributed to the deaths of 57 people. In response to the ...

This striking satellite photo shows the unusual shape of Spirit Lake, which was transformed into a giant anatomically inaccurate heart by the explosive eruption of Mount St. Helens in 1980.

The May 1980 eruption of Mount St. Helens sent ash 12 miles (19 kilometers) into the sky in the first 10 minutes of the explosion. Volcanoes like Mount St. Helens also often release pyroclastic ...