Mayon Volcano in Albay spewed more ash overnight Thursday, according to the Philippine Institute of Volcanology and Seismology.
Six phreatic or steam-driven eruptions were observed at 9:06 a.m., 9:39 p.m., 9:46 p.m., 9:55 p.m., 10 p.m., and 10:59 p.m.
Phivolcs said the ash column generated from these events rose 200 meters, 500 meters, 200 meters, 500 meters, 700 meters, and 300 meters above the summit, respectively, before drifting west.
During its 24-hour observation of Mayon Volcano’s activity from Thursday morning to yesterday morning, Phivolcs recorded six volcanic earthquakes and three rockfall events.
Moderate emission of white steam-laden plumes was also observed creeping downslope before drifting west-southwest, south-southwest, west, and southwest.
Furthermore, fair crater glow from the summit could still be observed at night.
Phivolcs said Mayon Volcano remains under Alert Level 2, which means “there is a moderate level of unrest.” The active volcano has been under Alert Level 2 since March 2018.
Phivolcs continues to warn the public that “sudden explosions, lava collapses, pyroclastic density currents or PDCs, and ashfall can still occur and threaten areas in the upper to middle slopes of Mayon.” (Lai V. Ruiz)