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

Now Washington State officials are looking over state plans for evacuation and other plans in case of a big eruption at Mt.

When Mount St. Helens in Washington erupted nearly 45 years ago, it killed 57 people, destroyed hundreds of homes, spread ash to at least 10 other states and blasted a wide, horseshoe-shaped crater ...

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

MOUNT ST. HELENS (KPTV) - A snowmobiler with an injured leg was rescued the afternoon of Monday Feb. 17 after an avalanche on Mount St. Helens, according to authorities. Around 2 p.m., three ...

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 ...

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.

Now, leaders across the state are coming together ... during the event of an eruption at either Mount Adams or Mount St. Helens. "We don’t really know when it’s going to erupt, what direction ...

Nearly 45 years after Mount St. Helens’ eruption sent almost 90 billion ... It used to catch about 80 percent of passing sediment, but now allows 80 percent to pass, Henon said.

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 ...