Mount St. Helens is poised for its biggest eruption since it blew its top in 1980, killing 57 people. Here are some common questions and answers about the volcano, located about 100 miles south of ...

It was a quiet Sunday morning, at 8:32 a.m., 38 years ago when Mount St. Helens blew its top, sending tons of ash into the sky. The volcano had been quiet since the 1850s, but in 1980, geologists were ...

VANCOUVER, WASH. - If lava continues to pile up inside the blasted crater of Mount St. Helens at the current rate, the volcano could rebuild its summit in about 10 years. Geologists say it's unlikely ...

On the morning of May 18, 1980, photographer Robert Landsburg hiked 7 miles from the summit of Mount St. Helens in the Cascades mountain range. As the lens of his camera viewed the snowy cap of the ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American I'm still going through the USGS image ...

Andrew Allen Reynolds, a Portland pastor and amateur photographer, recently re-developed and shared a rarely-seen photo his dad took of one of Mount St. Helens later eruptions in June of 1980 from ...

Sunday marks the anniversary of the May 18, 1980, volcanic eruption that rocked the Northwest. Geologist Carolyn Driedger recounts the haunting day before that catastrophic event — and its lasting ...

Inside the Cascades Volcano Observatory in Vancouver, Wash., SALI the robot weighs small crucibles holding sediment. SALI stands for Sediment Analysis Laboratory Instrument. “This is the modern legacy ...