Overview

• Mount Bulusan, located in Sorsogon province, erupted early April 28, producing a 4.5 km ash plume during a 24-minute phreatic event.
• The Philippine Institute of Volcanology and Seismology (Phivolcs) raised the alert level from 0 to 1, signaling low-level volcanic unrest.
• Ashfall was reported in multiple communities, including Cogon, Bolos, Puting Sapa, Guruyan, Buraburan, and Tulatula Sur.
• Authorities have established a 4 km danger zone and advised pilots to avoid the summit area due to potential hazards from sudden eruptions.
• Phivolcs detected 53 volcanic earthquakes in the 24 hours leading up to the eruption and warned of possible further phreatic activity and associated risks.