When Mount St. Helens erupted in 1980, the blast released 3.3 billion cubic yards of earth from the mountain.

See 50 photos from the 1980 Mount St. Helens eruption in a gallery at the end of this story It was early morning on Mount St. Helens when the volcano shook the Earth.

Magma from the mantle finds its way to the surface, where it erupts as lava or ash and gas—sometimes in spectacular spurts, ...

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 ...

This is a repost from the archives, an older post by Henrik which has been updated to reflect more recent findings. Did you know there are 255 volcanoes or volcanic features listed in the US?

Enjoy hot and mostly dry conditions with occasional afternoon storms this weekend. Take advantage of early morning skies for ...

At the 13th Moon Gravity Well, his debut live album with the Barry Walker Unit, was recorded on a geologically auspicious ...

The U.S. Geological Survey Cascades Volcano Observatory said the swarm began early Tuesday at the 14,410-foot volcano near ...

Sunday marks 45 years since Mount St. Helens erupted in Washington state. The deadly eruption happened shortly after 8:30 a.m. on May 18, 1980, following months of small explosions and earthquakes.

A body found in a reservoir near Mount St. Helens belongs to a missing hunter, deputies said. Getty Images/iStockphoto A 72-year-old man’s body was found seven months after he vanished during a ...

Indonesia’s rumbling Mount Lewotobi Laki Laki has erupted with a column of volcanic materials as high as 11 miles into the ...