Mount Kanlaon, one of the Philippines’ most active volcanoes, has intensified its activity, prompting authorities to issue an Alert Level 3 warning. The Philippine Institute of Volcanology and Seismology (PHIVOLCS) confirmed heightened volcanic activity on Dec. 10, 2024, including one eruption, pyroclastic density currents (PDCs), and several earthquakes.
Heightened Volcanic Activity
The day began with a volcanic eruption lasting three minutes and 55 seconds. This explosion generated a towering plume of volcanic material that rose 4,000 meters into the atmosphere. The ash plume dispersed to the west and southwest, prompting advisories for communities in these areas to remain vigilant.
Additionally, PHIVOLCS reported one PDC event. This hazardous flow traveled approximately 2 to 3.4 kilometers downslope from the crater, a reminder of the immediate dangers posed by the volcano. The agency also recorded 20 volcanic earthquakes within the last 24 hours, signifying sustained activity beneath Kanlaon.
Sulfur dioxide emissions have surged to 1,669 tons per day as of Dec. 9, 2024, further indicating escalating unrest. Ground deformation, characterized by swelling near the volcano, underscores the risk of future eruptions.
Public Safety Measures and Recommendations
PHIVOLCS has reiterated the 6-kilometer permanent danger zone (PDZ) restriction around the volcano’s summit, warning the public to avoid these areas due to life-threatening hazards, such as sudden explosions and ashfall. Aircraft are advised to avoid flying near Kanlaon’s airspace, as the ash clouds could endanger flight safety.
Communities near the volcano have been alerted to the possibility of lava flows, ashfall, and landslides triggered by heavy rains interacting with volcanic material. PHIVOLCS also cautioned against lahar flows in river channels surrounding Kanlaon, particularly during intense rainfall.
A History of Volcanic Power
Kanlaon has erupted multiple times throughout its recorded history, often impacting Negros Occidental and Negros Oriental provinces. Its last major eruption occurred in 2016, causing widespread ashfall. The current activity has revived concerns among residents who live near the volcano.
PHIVOLCS reminds the public that Alert Level 3 signals increased activity and the potential for hazardous eruptions. Communities are urged to remain vigilant, follow evacuation protocols, and stay updated via official advisories.

Jaja has a degree in journalism and took classes in international law and business communication. Her career spans roles at prominent international media outlets, including International Business Times, Celebeat and Delightful Philippines. As a news editor, Jaja covered a wide range of beats, including legal, business, economy, cryptocurrency, personal finance, gaming, technology, and entertainment.