Nearly 45 years after Mount St. Helens' eruption sent almost 90 billion cubic feet of debris into the upper Toutle Valley, ...

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 ...

Mount St. Helens Institute volunteer Allen Bennett, who considers May 18, the "erupt-iversary," said the ... to hike,” said Bennett, minutes before heading out on a 5-mile trek to the Johnston ...

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 ...

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

WA leaders are reassessing their plans for the possibility of an eruption at Mount Adams or Mount St. Helens. Dozens of local, tribal, state and federal officials gathered virtually and in-person ...

When Mount St. Helens erupted in 1980, it blew away the top 1,300 feet (400 m) of the mountain — about the height of the Empire State Building. ts can use their trunk like a snorkel in the water.

He said Blackburn also visited schools before the eruption describing what he had seen at Mount St. Helens. ”This is a person ...

MOUNT ST. HELENS, Wash. (KATU ... and tended to the injured rider before leaving to call for help. Ten volunteer members of the Volcano Rescue Team responded through challenging conditions ...

Nearly 45 years after Mount St. Helens’ eruption sent almost 90 billion cubic feet of debris into the upper Toutle Valley, millions of tons of sediment still pour into the Cowlitz River each year.