Bulusan Volcano Experiencing Increased Seismic Activity The Bulusan Volcano in Sorsogon is showing signs of heightened seismic activity, according to the Philippine Institute of Volcanology and Seismology (PHIVOLCS). An advisory issued on Sunday noted the volcano’s evolving behavior, signaling vigilance for nearby communities and visitors. What the Data Shows From 12 a.m. on Saturday, October…