Volcanoes are now more closely monitored. We have a good chance now of determining when a volcano becomes restless,” says Don Swanson, a volcanologist reflecting on the lessons learned from the 1980 ...

The snowcapped peak of Mount Rainier, which towers 4.3 kilometers (2.7 miles) above sea level in Washington state, has not produced a significant volcanic eruption in the past 1,000 years. Yet, more ...

Scientists and emergency managers who keep an eye on Washington state volcanoes Mount Rainier and Mount St. Helens in case of a future eruption are collaborating with their counterparts from Columbia.

Something stirred beneath Mount Rainier this summer, sending over 1,000 earthquakes through the ground in weeks—the largest ...

Four dozen earthquakes were detected at Mount St. Helens over the last month, but volcano seismologist Dr. Weston Thelen of the United States Geological Survey said it’s nothing to worry about. While ...

The most destructive volcanic eruption in United States history happened less than half a century ago in Washington state. On May 18, 1980, the north side of Mount St. Helens, in southwestern ...

A volcanic eruption is one of the most powerful forces in nature, a seemingly unstoppable phenomenon that can have far-reaching impacts far beyond the area surrounding the volcano itself. When a ...

The scenic national forest road to the southeast side of Mount St. Helens National Volcanic Monument, closed since the November 2006 floods, reopens Friday, Oct.3, 2008. Gifford Pinchot National ...

Four dozen earthquakes were detected at Mount St. Helens over the last month, but volcano seismologist Dr. Weston Thelen of the United States Geological Survey said it’s nothing to worry about. While ...