Photo courtesy of Philippine News Agency (PNA).
Alert Level 3 remains in effect at Mayon Volcano as state volcanologists continue to record persistent signs of unrest in the Albay landmark.
The Philippine Institute of Volcanology and Seismology reported frequent rockfalls, numerous pyroclastic density currents, and a volcanic earthquake during the latest monitoring period.
Phivolcs said the sustained activity reflects an ongoing movement of magma beneath the volcano, contributing to the gradual buildup of a lava dome at the summit.
According to Phivolcs Director Teresito Bacolcol, the growth of the dome makes it increasingly unstable, raising the likelihood of collapses that can trigger dangerous surface events.
He explained that pyroclastic density currents consist of hot ash, rocks, and gas that can race downslope at very high speeds, posing a serious threat to nearby areas.
Volcanologists also noted a brief crater glow observed Wednesday evening, attributed to superheated volcanic gases illuminating the area above the crater.
In addition, the volcano released large volumes of sulfur dioxide and produced a plume that rose a few hundred meters before drifting northeast.
Phivolcs reiterated that entry into the six-kilometer Permanent Danger Zone remains prohibited and warned residents and aircraft operators to stay alert for hazards such as lava flows, rockfalls, explosions, and possible lahars.
