Visual observations have been a backbone of volcano research more than 2,000 years and remain fundamental to understanding ...

Volcano Watch” is a weekly article and activity update written by U.S. Geological Survey Hawaiian Volcano Observatory scientists and affiliates. Today’s article is by Hawaiian Volcano Observatory ...

Most webcams used by the USGS Hawaiian Volcano Observatory take a snapshot every few minutes to conserve bandwidth, but three webcams are currently “livestreaming” — meaning they transmit real-time ...

In volcanoes, fluid inclusions are dominantly composed of CO 2. At magmatic temperatures (1200˚ C or 2192˚ F), the density of the CO 2 strongly depends on pressure, which is influenced by the depth of ...

HONOLULU (KHON) — A swarm of earthquakes beneath the south part of the Big Island of Hawaii, within Hawaii Volcanoes National Park, was reported Monday evening, raising concerns over whether Kīlauea ...

The Kanlaon Volcano on the island of Negros in the Philippines, erupted on Thursday, sending plumes of ash into the air.

Since late 2024, Klauea has unleashed 42 episodic fountaining events, each typically lasting a day or less, separated by ...

A mud volcano in San Juan de Uraba, Colombia, erupted on February 25, 2026, spewing fire and mud near a water plant.

WATCH: Kanlaon Volcano emitted ash from 9:43 a.m. to 10:53 a.m. on Friday, February 27, producing voluminous gray plumes that rose 1,000 meters above the summit crater,  according to the Philippine ...

A moderately explosive eruption at the summit crater of Kanlaon Volcano occurs at 7:04 p.m. today on Feb. 26, 2026 and lasted ...

When referred to as a gas, it means a volatile has transitioned into the vapor phase. The most common gases (or vapor phase volatiles) emitted at the surface are water (H2O), carbon dioxide (CO2), and ...