It started as a go-for-broke experiment, but it wound up saving an ecosystem.

Strong winds across parts of Washington state have kicked up volcanic ash deposited during the 1980 eruption of Mount St. Helens, creating hazy conditions and reducing air quality. The phenomenon, ...

Add Yahoo as a preferred source to see more of our stories on Google. Steam erupts from Mount St. Helens in this 2004 photo. Craig Mitchelldyer via Getty Images The social media account for the Mount ...

A short-lived experiment in the wake of the Mount St. Helens eruption has produced effects still visible 43 years later. By placing tiny creatures on barren volcanic ground, scientists unintentionally ...

VANCOUVER, Wash. (KPTV/Gray News) - Mount St. Helens, which notoriously erupted in 1980, has been showing signs of increased seismic activity lately, according to the U.S. Geological Survey. It’s ...

Mount St. Helens had stood silent for over a century in Washington’s Cascade Range. But that changed 43 years ago Thursday when the sleeping giant woke up and erupted into Pacific Northwest history.

Mount St. Helens has been stirring as of late, showing increased signs of seismic activity over the last few months, according to the U.S. Geological Survey. The volcano has experienced 368 ...

Mount Saint Helens is the biggest volcanic eruption in United States history, and this weekend marked 45 years. The eruption and the following landslide killed 57 people, destroyed 200 homes, and ...

PORTLAND, Ore. (KOIN) — On May 18, 1980, Mount St. Helens erupted — killing 57 people, coating the land in ash and creating the largest landslide ever recorded. Thursday marks the 43rd anniversary of ...

Add Yahoo as a preferred source to see more of our stories on Google. Strong winds across parts of Washington state have kicked up volcanic ash deposited during the 1980 eruption of Mount St. Helens, ...