Phivolcs raises Mayon Volcano to Alert Level 2 amid moderate unrest

The Philippine Institute of Volcanology and Seismology (Phivolcs) has raised Mayon Volcano to Alert Level 2, indicating moderate unrest.

Phivolcs recorded 47 rockfall events on December 31, 2025, and a total of 599 rockfall events in the last two months of 2025.

Increased rockfall from the summit lava dome is a precursory sign of magmatic dome growth preceding an eruption, similar to conditions before the 2023 eruption.

Ground deformation data indicates swelling and inflation of the volcano edifice on its western to southwestern slopes, which may indicate increased chances of an eruption.

Albay Governor Noel Rosal directed local police to enforce a "no human activity" policy within the six-kilometer-radius permanent danger zone, prohibiting all-terrain vehicle rides beyond Cagsawa Ruins and access to Mayon Skyline.

A "no-fly zone" above the volcano has also been advised.