LEGAZPI CITY, ALBAY — The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that Mayon Volcano exhibited minor Strombolian activity on Wednesday, November 11, sending a plume 500 meters above its summit crater.
According to PHIVOLCS, camera footage recorded the event at approximately 11:56 a.m. via the Mayon Volcano Observatory Ligñon Hill (VMLH) IP camera.
“This event generated a plume that rose 500 meters above the summit crater as captured by the Mayon Volcano Observatory Ligñon Hill (VMLH) IP camera,” PHIVOLCS said.
The agency noted that Alert Level 3 remains hoisted over the volcano, indicating intensified unrest driven by magmatic activity.
In addition to the Strombolian activity, the latest bulletin recorded four volcanic earthquakes and five rockfall events. Sulfur dioxide emissions reached 2,170 tonnes per day on November 10, accompanied by moderate plume emissions drifting toward the southwest. Ground deformation monitoring revealed general inflation of the volcanic edifice, alongside short-term deflation in the northeastern sector.
Authorities reiterated that entry into the six-kilometer radius Permanent Danger Zone (PDZ) remains strictly prohibited, and aircraft are banned from flying close to the summit.
Potential hazards surrounding the volcano include rockfalls, landslides, avalanches, ballistic fragments, lava flows, lava fountaining, pyroclastic density currents, and moderate-sized explosions. Officials also warned that heavy and prolonged rainfall could trigger lahars.