Kanlaon Volcano emits record SO2, PHIVOLCS raises alert

On Wednesday, August 21, Kanlaon Volcano in Negros Island emitted 6,720 tonnes of volcanic sulfur dioxide (SO2), marking the second highest emission this year and since gas monitoring began.

The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported elevated SO2 emissions and shallow earthquakes beneath the northeastern sector of the volcano, indicating increased unrest.

Director Teresito Bacolcol noted that these signs suggest magma is moving closer to the surface, requiring close monitoring.

Kanlaon remains under Alert Level 2, advising residents to avoid entering the 4-kilometer Permanent Danger Zone due to potential hazards such as steam-driven eruptions or ash fall.

PHIVOLCS also reported sulfuric stench and SO2 fumes in several barangays of La Carlota City and La Castellana, urging people with respiratory issues to take precautions.

Pilots are advised to avoid flying near the volcano's summit while communities nearby that have experienced lahars and mudflows are told to take precautionary measures when heavy rainfall occurs.