Mayon Volcano continues to show signs of increased unrest, with 85 rockfall events recorded in the past 24 hours, the Philippine Institute of Volcanology and Seismology (Phivolcs) said on Tuesday, January 6.

Phivolcs said the latest incandescent rockfall from the summit lava dome occurred at 10:46 p.m. on January 5 and was captured by the Mayon Volcano Network’s cameras and seismic monitors.

Alert Level 2 remains in effect over Mayon Volcano, according to Phivolcs. Authorities strongly advise that entry into the 6-kilometer Permanent Danger Zone (PDZ) is strictly prohibited due to the risk of sudden rockfalls, landslides, and steam-driven eruptions. Entry into the Extended Danger Zone (EDZ) is also discouraged without proper vigilance.

Current monitoring shows a faint crater glow visible only through telescopes, an obscured plume, and a measured sulfur dioxide flux of 702 tonnes per day as of January 5, Phivolcs said.

Ground deformation data indicate that the volcano’s edifice is inflated, signaling ongoing internal activity, it added.

Phivolcs noted that no volcanic earthquakes with sufficient data for location were recorded in the past 24 hours.

Meanwhile, the agency also cautioned against flying aircraft near the volcano, highlighting potential hazards from phreatic eruptions, rockfalls, and lahar flows during heavy rainfall.

Phivolcs reiterated that Mayon Volcano, located in the province of Albay, remains under continuous observation. Residents and tourists were urged to follow official advisories to ensure safety.