MANILA, Philippines — The Philippine Institute of Volcanology and Seismology (Phivolcs) recorded two ash-emission events from the summit crater of Mayon Volcano on Friday morning. In a Facebook post, Phivolcs shared time-lapse footage of the emissions, recorded at 8:21 a.m. and 8:27 a.m. “These events generated a grayish plume that rose 50 meters above the crater before drifting west-southwest,” Phivolcs said. READ: More than 20 Albay villages affected by Mayon ashfall In its 24-hour observation summary, Phivolcs also recorded lava effusion with lava flow in its three gullies: Basud, Bonga, and Mi-isi. Sulfur dioxide flux was measured at 3,749 tons […]... Keep on reading: Mayon Volcano emits ash