Pyroclastic flows from Mayon Volcano surged 4 kilometers down the Mi-isi Gully in late May 2026, marking the farthest runout since the current eruptive episode began. Sulfur dioxide emissions spiked ...
A lava-related collapse generated a pyroclastic density current (PDC) or “uson” at Mayon Volcano’s southwestern slopes on Wednesday morning, May 13, according to the Philippine Institute of ...