The Philippine Institute of Volcanology and Seismology (PHIVOLCS) observed an increased swelling of Kanlaon Volcano’s edifice on Monday, July 15.

Based on the Electronic Disaster Meter (EDM) measurements by the Kanlaon Volcano Observatory, there was an abrupt order of magnitude shortening of campaign lines on the middle and lower southern slopes. The apparent changes began on June 18, 2024, and has become sustained since then.

However, PHIVOLCS also pointed out that the volcano has been undergoing a slow but sustained swelling since 2022, due to the long-term pressurization within the volcano.

There is a high chance that magmatic intrusion beneath the ground may be taking place, a warning sign for eruptive activity about to take place.

“The public is strongly advised to be vigilant and avoid entry into the four (4) kilometer-radius Permanent Danger Zone (PDZ) to minimize risks from volcanic hazards,” the announcement read.

In case of ash fall events, people are advised to cover their nose and mouth with a damp, clean cloth or dust mask.

Moreover, pilots are to avoid flying close to the volcano’s summit as some volcanic fragments may be hazardous to aircraft. Communities living near the river systems are also advised to taker precautionary measures in case of heavy rainfall over the volcano has begun.