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

Is it getting ready to rock? Mount Saint Helens in Washington ... have been observed in the past at Mount St. Helens and at ...

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 ...

Much like in 1980, if we started seeing more frantic rumbling, then the media coverage would become intense, and it could ...

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 ...

The last fatal avalanche on Mount Saint Helens in 2010 was also a cornice fall. A climber was killed. A cornice is a mass of hardened overhanging snow at the edge of a rock face. “A cornice is ...

PORTLAND, Ore. (KOIN) — After an avalanche on Mt. St. Helens left one snowmobiler stuck and another injured, a fellow snowmobiler managed to aid them before calling in a rescue group on Monday.

Explosive eruptions, though, can blast huge amounts of rock and ash thousands of feet into the air. The May 1980 eruption of Mount St. Helens sent ash 12 miles (19 kilometers) into the sky in the ...

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 ...

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 ...

MOUNT ST. HELENS, Wash. (KATU) — Snowmobilers, including one with a serious leg injury, were rescued following an avalanche on Mount St. Helens on Feb. 17. The incident occurred when three ...

From there, the lower Cowlitz River ferries an average of nearly 3 millions tons of sediment through Castle Rock, Kelso and Longview, where it dumps into the Columbia River Mount St. Helens ...