Take a tour through volcanic history on the edge of the Sierra Nevada near Mammoth Lakes, California. Between the tall ...

A recent study reveals that the Poás volcano has changed its eruption pattern, redefining the global ash-related risk map.

Mount Etna’s craters continue to smoulder two days after its largest eruption in four years sent tourists fleeing from a vast column of gas and ash on Monday. Tourists have returned to the slopes of ...

Mount Shasta presents a unique challenge that most other active volcanoes don't for USGS scientists. The only place to sample is near the summit of the active volcano located above 14,000-feet, ...

When a volcano that has slept for centuries suddenly roars back to life, the first clear view no longer comes from a ship or a nearby village, but from orbit. Earlier this year, a NASA satellite ...