The Volcano Observatory Notice to Aviation (VONA) is a notification product used by volcano observatories globally to inform ...

One of the most deadly and dangerous volcano hazards isn’t lava. Mudflows called lahars can come without clear warning.

LEGAZPI CITY — Bulusan Volcano — one of the active volcanoes in the Philippines — is showing signs of impending steam-driven ...

U.S. Geological Survey is designated by the Federal Aviation Administration as the entity to issue Volcano Observatory ...

The Kīlauea summit area in Hawaiʻi Volcanoes National Park is temporarily closed due to dangerous amounts of tephra falling. Highway 11 is closed between Kīlauea summit area in Hawaiʻi Volcanoes ...

Park rangers are evacuating visitors from the Kīlauea Summit in Hawaiʻi Volcanoes National Park as it is temporarily closed due to hazardous amounts of volcanic rock, ash and glass particles falling ...

A new detection method called “Jerk” could dramatically improve how scientists forecast volcanic eruptions. By using a single broadband seismometer, the system can detect extremely subtle ground ...

The Philippine Institute of Volcanology and Seismology (Phivolcs) reported on Tuesday an increased seismic activity at Bulusan Volcano but maintained Alert Level 0 as no magmatic eruption is foreseen.

Authorities reported tephra fall—including ash, Pele’s hair, and larger fragments—across Hawaiʻi Volcanoes National Park.

MANILA, Philippines — The Philippine Institute of Seismology and Volcanology (Phivolcs) on Tuesday said it has once again ...

Back in January, SFGATE was on the ground in the national park during a previous eruption episode that also rained tephra ...

Hawaii Island’s Kīlauea Volcano erupted for the 43rd time on March 10, issuing a rare Ashfall Warning. This isn't the first ...