Lava flows from Mayon Volcano spill up to 3.2 kilometers down the Mi-isi, Bonga, and Basud gullies, as captured by the Mayon Volcano Observatory on January 24, 2026. Photo courtesy of Phivolcs.
Mayon Volcano in Albay continued its effusive eruption for the 18th consecutive day, the Philippine Institute of Volcanology and Seismology (Phivolcs) said Sunday.
The agency reported that incandescent lava flows, pyroclastic density currents or “uson,” and rockfalls were generated on Saturday and traveled down multiple channels on the volcano’s slopes.
Lava from the summit crater advanced between 1.3 and 3.2 kilometers along the Mi-isi Gully to the south, the Bonga Gully to the southeast, and the Basud Gully to the east.
Phivolcs also recorded one volcanic earthquake, one episode of sustained tremor, more than 250 rockfall events, and 44 pyroclastic density currents during the monitoring period.
A crater glow remained visible at night, while sulfur dioxide emissions reached about 2,327 tonnes, indicating continued magma supply.
Moderate volcanic plumes rose up to 600 meters above the crater and drifted southwest and northeast, depending on wind conditions.
Mayon Volcano remains on Alert Level 3, with warnings against entering the six-kilometer Permanent Danger Zone and advisories to exercise caution in extended danger areas due to ongoing hazards such as lava flows, rockfalls, and rain-induced lahars.