Over the past three decades, at least two experienced climbers have died after tumbling into the Mount St. Helens crater due to a cornice break and a third man survived the fall.

More than 400 earthquakes have been detected beneath Washington’s Mount St. Helens in recent months, though there are no signs of an imminent eruption, according to the U.S. Geological Survey.

Every ecosystem is complex and unique. In some places, specific plants, animals, fungi, or bacteria will have a dramatic effect on how the other things in the area will live. Most of the time, if one ...

According to the USGS, Mount St. Helens is the most active volcano in the lower 48 states and the most likely in the Cascades to erupt again.

Although earthquakes under Mount St. Helens are not uncommon, the recent seismic activity is the largest short-term increase in earthquakes since the volcano last erupted in 2008.

After nearly two years, the camera at the site of the 1980 Mount St. Helens eruption is back online.

The body of an experienced mountain climber, who had successfully ventured up Mount St. Helens nearly 30 times, was found inside its volcano after it’s believed he plummeted to his death.

When Mount St. Helens erupted in 1980, lava incinerated anything living for miles around. As an experiment, scientists dropped gophers onto parts of the scorched mountain for only 24 hours. The ...

We dug into the archives for 'The Mountain Erupts,' a KING 5 documentary on the 1980 Mount St. Helens eruption.

Mount St. Helens, 43 years later: Looking back, ahead on anniversary of worst U.S. volcanic disaster Effects of blast still being felt to this day ...

Color photos shot in 1980 from the cockpit of a Cessna 150 reveal the magnitude of Mount St. Helens' ash and destruction amid volcano's eruption.

When Mount St. Helens erupted in 1980, lava incinerated anything living for miles around. As an experiment, scientists dropped gophers onto parts of the scorched mountain for only 24 hours. The ...