Beneath the western outskirts of Naples, one of Europe’s most complex volcanic systems is entering a phase of renewed unrest.

Few volcanoes on Earth boast the fantastical title of "supervolcano," but what makes these uber volcanoes so super, and is the superlative always justified? It very much depends on who you ask. A ...

A picture of Midway Geiser in Yellowstone National Park shows streams of red liquid flowing away from its center. The amount of melted rock beneath Yellowstone's supervolcano is far higher than ...

California’s uncanny “earthquake pause” is over. It should have already had several “big ones” by now. All that pressure has to go somewhere. Now geologists are nervously eyeing eight nearby volcanoes ...

California's exodus isn't just billionaires — it's regular people renting U-Hauls, too Portland police chief cries while ...

Fears of the Yellowstone supervolcano erupting have cropped up from time to time, but a newly released study suggests that the hotspot may actually be waning. The research, published earlier this ...

Yellowstone National Park sits above one of the most extensively studied volcanic systems on Earth. Beneath its forests, ...