Around the globe, volcanic giants continue their relentless dance with destruction and creation. These geological time bombs ...

Volcanoes are nature's most dramatic rocks, and while their eruptions can be awe-inspiring, they also pose serious threats to ...

Mount Shasta, a steep-sided Cascade Range stratovolcano in Northern California, looms above Little Glass Mountain, a thick obsidian flow erupted from the Medicine Lake shield volcano about 1,000 years ...

Seth Moran is worried about Mount Hood. In the 1780s, the volcano rumbled to life with such force that it sent high-speed avalanches of hot rock, gas and ash down its slopes. Those flows quickly ...

One of the most dangerous volcanoes in America was shaken by hundreds of earthquakes Tuesday morning. Mount Rainier, which the U.S. Geological Survey considers the second most dangerous volcano in the ...

While in Rome, Penny and I took a day trip to Naples, Pompeii and Sorrento. Both Naples and Pompeii sit in the relative shadows of Mount Vesuvius, a small, but potent volcano. We visited the ...

Campi Flegrei, Italy’s sleeping supervolcano near Naples, is showing signs of unrest. Scientists warn its awakening could ...