State volcanologists recorded 256 rockfalls at Mayon Volcano amid ongoing lava flows, the Philippine Institute of Volcanology and Seismology (Phivolcs) said. The volcano has been at Alert Level 3 since January 6. It also generated 41 pyroclastic density currents and elevated sulfur dioxide emissions.
In its latest observation at 12 a.m. on January 11, the Philippine Institute of Volcanology and Seismology (Phivolcs) reported 256 rockfall events at Mayon Volcano in Albay, along with 41 pyroclastic density currents. The volcano continues to exhibit ongoing lava flows, with sulfur dioxide flux reaching 777 metric tons per day on January 10. Ground deformation data indicate that the volcano remains swollen or inflated.
It also emits moderate steam plumes reaching up to 200 meters, drifting toward the northeast. Authorities enforce a strict ban on entry into the six-kilometer Permanent Danger Zone due to the constant threat of rockfalls, avalanches, and explosions.
Phivolcs raised the volcano's status to Alert Level 3 on January 6 following the onset of dome collapse pyroclastic density currents. The agency continues to monitor the activity closely to safeguard nearby residents.
