Episode 41 of lava fountaining in Kilauea’s Halemaumau crater began late this morning, according to the U.S. Geological ...

Studying tree rings helped scientists pinpoint when Mount Rainier last sent a lahar down its steep slopes, which could help planners anticipate future mudflows.

Hawaii's Kilauea volcano produces significant volcanic gas during the latest eruption. Officials are monitoring air quality as crowds flock to witness the activity.

A crater glow, locally known as “banaag,” was observed at the summit of Mayon Volcano on Wednesday evening, according to PHIVOLCS. In an advisory, PHIVOLCS said that the crater glow was spotted ...

Lava and ash have once again transformed the summit of Kīlauea into a vision that looks ripped from a disaster film, with ...

Hawaiʻi County Civil Defense advises Big Island residents and visitors to take precautions in areas impacted by falling ash ...

“Tephra fall has been reported in public viewing areas within Hawaii Volcanoes National Park, Volcano Village, Mauna Loa ...

Episode 41 of lava fountaining to more than 1,600 feet high as part of the ongoing episodic summit eruption of Kīlauea ...

Scientists are flocking to Iceland to investigate an increasingly crucial question: Will melting glaciers accelerate and intensify earthquakes and volcanic eruptions? William Brangham reports. PBS ...