Learn more about the impending Axial Seamount eruption and how the organisms around the underwater volcano may benefit from ...

From mighty rivers to high mountain peaks, most of the West Coast’s search-and-rescue programs rely entirely on volunteers.

Researchers are watching the most active volcano in the Pacific Northwest and now say that the volcano is swelling up like a balloon full of lava.

The volcano is thousands of feet below the ocean’s surface, so it poses no danger to people. But under all that water, a ...

Flashback: After months of blowing off steam, the mountain erupted at 8:32am, killing 57 people, blotting out the sun across ...

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.