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

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

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

After the eruption they flip-flopped ... The monument's life-support system is volunteers from the nonprofit Mount St. Helens Institute, seasonal workers, and interns. Seventy percent of its ...

After thousands of additional earthquakes ... unable to give a precise date scientists tried to predict the eruption of Mount St Helens by measuring the frequency of earthquakes on the mountain.

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 ...

Mount St. Helens erupted 45 years ago in May ... prompting a new plan in case of a future volcanic eruption.

Over 400 earthquakes have been detected near Mount St. Helens since mid-July, but the United States Geological Survey says that it isn’t something to worry about. Read more: https://www.koin.com ...

When Mount St. Helens erupted in 1980 ... are cone-shaped volcanoes that build up from layer after layer of lava and ash, one eruption at a time. They're also called composite volcanoes.

Today, the resilient body of water is closely monitored by scientists who are studying how ecosystems can rebound after major ... a "cataclysmic eruption" at Mount St. Helens — an active ...