The 45th anniversary of the catastrophic eruption of Mount St. Helens is on May 18. Here's what to know and when the volcano might erupt again.

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.

Is it getting ready to rock? Mount Saint Helens in Washington, which notoriously and cataclysmically erupted in 1980 and had its ash reach Montana, has been showing major signs of constant activity… ...

Mauna Loa and Mount St. Helens erupt in different ways,” said Liz Westby, a geologist based at the U.S. Geological Survey’s Cascades Volcano Observatory in Vancouver, Washington.

Mount St. Helens, one of the most studied volcanoes in the United States, is showing signs of renewed activity as its magma chamber begins recharging. This update covers the recent earthquake ...

The social media account for the Mount St. Helens volcano in Washington State erupted on Wednesday after someone suggested there might be a better mountain in the continental United States. The ...

In 1980, Mount St. Helens erupted, killing dozens and forever changing how the US monitors earthquakes. The volcano is still active but not erupting.

The 45th anniversary of the catastrophic eruption of Mount St. Helens is on May 18. Here's what to know and when the volcano might erupt again.

The Mount St. Helens visitor center is reopening its doors with the first major renovations since it opened in 1986.

A plume of condensation rises off Mount St. Helens, as viewed from the roof of the Cascades Volcano Observatory December 19, 2006 in Vancouver, Washington. The plume results from condensation of ...