A wall of superheated gas and rock fragments tore down the southeastern flank of Mayon volcano on June 9, 2026, traveling 4 kilometers through the Mi-isi Gully before coming to rest in the lowlands below.

Volcano Watch is a weekly article and activity update written by U.S. Geological Survey Hawaiian Volcano Observatory scientists and affiliates. We are used to seeing eruptions from the summit region of Kīlauea contained to the region referred to as Halemaʻumaʻu.

Near-constant activity continues on the volcano in Russia. Shivelyuch (also called Shiveluch), the most northerly active volcano on the Kamchatka Peninsula, is one of the most active volcanoes in the world.

Airspace restricted and thousands evacuated as Mayon volcano erupts in Philippines - Mayon, Southeast Asian nation’s most active volcano, has erupted nearly 50 times over last four centuries

Will Yellowstone erupt or are we blowing things out of proportion? We may have underestimated Yellowstone’s potential to blow its stack in the future. Chinese scientists have made a disconcerting find regarding the mechanism behind the caldera’s ...

From a geothermal hotspot to the one-time "Lighthouse of the Pacific," the heat is on beneath the volcanic landscape of western El Salvador.

Recent satellite monitoring and AI-driven seismic analysis have spotlighted the most dangerous supervolcanoes in the world. From Yellowstone's shifting subsidence to Italy’s restless Campi Flegrei, scientists are tracking deep-earth movements that could redefine global volcanic risk and emergency preparedness for millions.