As of Monday, May 11, Mayon Volcano remains highly active at Alert Level 3, according to state volcanologists.

In an advisory, the Philippine Institute of Volcanology and Seismology (PHIVOLCS) announced that lava continues to flow from the Basud, Bonga, and Mi-isi gullies, with Basud experiencing on-and-off, weak strombolian activity.

Within 24 hours, PHIVOLCS logged 21 volcanic earthquakes in Mayon, including three volcanic tremors, one to 13 minutes long. In addition, the agency observed 313 rockfall incidents and 12 pyroclastic density current signals.

Volcanologists also observed a visible crater glow and smoke plumes rising 300 meters above the crater. They noted moderate emissions swept away to the West Southwest, West Northwest, and Southwest.

Moreover, a short-term volcanic eruption with initial swelling in the northeastern portion was logged.

PHIVOLCS recommended the prohibition of entry beyond the 6-kilometer radius of the volcano, or the Permanent Danger Zone, and flying aircraft above the volcano.

The agency warned that rockfall, the expulsion of lava or rock mounds, lava flow, volcanic mudflow or lahar, moderate eruption, lahar outflow (if heavy rainfall occurs) may happen.