Lava effusion seen at Mayon on 35th day of effusive eruption

State volcanologists on Tuesday night observed the occurrence of lava effusion at the Mayon Volcano in Albay as the volcano continued its effusive eruption for the 35th consecutive day.

In posts on its social media accounts, the Philippine Institute of Volcanology and Seismology (PHIVOLCS) shared a time-lapse video recorded from 10:14 p.m. to 10:20 p.m. that showed the lava effusion at the summit crater.

Mayon Volcano’s effusive eruption for the 35th consecutive day also generated incandescent lava flows, pyroclastic density currents (PDCs) or “uson,” and rockfall.

“Lava flows have reached radial distances from the crater of ~3.77km in the Basud (east), ~1.59km in the Bonga (southeast), and ~1.34km in the Mi-isi Gullies (south) as of 05 February 2026,” PHIVOLCS added.

Mayon Volcano remains under Alert Level 3, with entry into its six-kilometer permanent danger zone (PDZ) strictly prohibited.

On Monday morning, the volcano generated its largest PDC at around 10:35 a.m., which traveled down as far as a four-kilometer radial distance along the Mi-isi Gully.

The PDC generated an extensive, one-kilometer-tall brownish ash plume that drifted to the southwest and brought ashfall over 32 barangays in Camalig and Guinobatan towns in Albay. — JMA, GMA Integrated News