Mount Kanlaon experienced another moderately explosive eruption on Thursday evening, March 15, 2026, at 6:07 PM, prompting the Department of Science and Technology-Philippine Institute of Volcanology and Seismology (DOST-PHIVOLCS) to deploy advanced computer simulation models to monitor ashfall impacts on surrounding communities.
According to PHIVOLCS monitoring reports, the eruption generated a 5-kilometer-high eruption column that is currently drifting toward the southeast and northeast directions. This marks the third volcanic event at Kanlaon this year, following similar moderately explosive eruptions recorded on February 19 and February 26, 2026.
Advanced Monitoring Technology Deployed
PHIVOLCS has implemented the Ash3D ash dispersion model, a sophisticated computer simulation system that utilizes plume height data to guide ashfall impact monitoring for communities across Negros Oriental and Negros Occidental. The agency stated that volcanologists and local government units are using these technological tools to monitor ashfall distribution during volcanic activity.
The ash dispersion maps generated through the Ash3D model provide critical information on ashfall thickness, distribution patterns, dispersal trajectories, and the duration of ash cloud movement. These data enable authorities to identify and verify areas that may be affected or are likely to experience ashfall impacts, according to PHIVOLCS officials.
The advanced modeling system represents a significant upgrade in volcanic monitoring capabilities, allowing for real-time tracking of ash movement and more precise forecasting of areas at risk.
Alert Level Maintained
PHIVOLCS continues to maintain Alert Level 2 over Kanlaon Volcano, indicating that the volcano remains in a state of moderate unrest. Under this alert level, entry into the 4-kilometer Permanent Danger Zone (PDZ) around the volcano's summit crater is strictly prohibited.
The PDZ encompasses areas in both Negros Oriental and Negros Occidental provinces, affecting municipalities and barangays within the specified radius. Local government units in both provinces have been coordinating with PHIVOLCS to ensure compliance with safety protocols and evacuation procedures if necessary.
Alert Level 2 signifies that the volcano is experiencing magmatic unrest and that explosive eruptions could occur without warning. Residents and visitors are advised to stay vigilant and avoid areas within the danger zone.
Impact on Local Communities
The ashfall from Thursday's eruption is expected to affect several municipalities in Negros Oriental, particularly those located southeast and northeast of the volcano. Based on wind patterns and the Ash3D modeling predictions, communities in the path of the ash plume should prepare for potential ashfall accumulation.
Local disaster risk reduction and management offices in affected municipalities have been placed on heightened alert status. Emergency response teams are monitoring air quality conditions and preparing to distribute protective equipment such as face masks and goggles to residents if needed.
Agricultural areas within the ashfall trajectory may experience impacts on crops and livestock. Farmers have been advised to shelter animals and cover water sources to prevent contamination from volcanic ash.
Safety Guidelines and Preparedness
PHIVOLCS has emphasized the importance of community preparedness and has directed the public to visit their official website for comprehensive guidelines on ashfall safety. The agency's volcano preparedness page provides detailed instructions on what to do before, during, and after ashfall events.
Key safety recommendations include staying indoors during heavy ashfall, wearing protective masks when going outside, covering water tanks and food supplies, and avoiding driving unless absolutely necessary due to reduced visibility and slippery road conditions.
Health officials have also issued advisories for individuals with respiratory conditions, elderly residents, and children to take extra precautions during ashfall events. The fine volcanic particles can exacerbate breathing difficulties and cause eye irritation.
Volcanic Activity Pattern
The series of eruptions at Kanlaon Volcano in 2026 follows a pattern of increased volcanic activity that began in the previous year. The volcano, which straddles the border between Negros Oriental and Negros Occidental, has shown signs of unrest through increased seismic activity and gas emissions.
PHIVOLCS scientists continue to monitor various parameters including seismic activity, ground deformation, gas emissions, and thermal changes at the volcano. The agency maintains a 24-hour monitoring system with seismometers and other scientific instruments positioned around the volcano.
The recent eruptions have been classified as moderately explosive, characterized by the ejection of volcanic material to heights of several kilometers and the production of ash columns that can affect communities depending on wind direction and strength.
Regional Coordination Efforts
Provincial governments of Negros Oriental and Negros Occidental have been working closely with PHIVOLCS to ensure coordinated response efforts. Regular briefings and updates are being provided to local chief executives and disaster response teams.
The Volcano Disaster Assistance Program continues to support monitoring and preparedness activities, providing technical assistance and resources for community safety initiatives. This program enhances the capacity of local authorities to respond effectively to volcanic hazards.
Tourism activities in areas near the volcano have been temporarily suspended, and hiking or climbing activities within the danger zone remain prohibited. Local tourism offices are coordinating with the Department of Tourism to ensure visitor safety.
Ongoing Monitoring and Future Outlook
PHIVOLCS scientists emphasize that volcanic activity at Kanlaon remains unpredictable, and residents should stay informed through official channels. The agency continues to issue regular bulletins and updates on the volcano's status.
The implementation of the Ash3D modeling system represents a significant advancement in volcanic hazard monitoring for the Philippines. The technology provides more accurate predictions of ashfall impacts, enabling better disaster preparedness and response planning.
Authorities urge the public to remain vigilant and to report any unusual volcanic phenomena to local authorities or PHIVOLCS. The agency's hashtag campaign #HandaAngMayAlam (Those Who Know Are Prepared) continues to promote volcanic hazard awareness and preparedness in vulnerable communities.
Photo credit: Photo courtesy of DOST-PHIVOLCS