Lava effusion, collapse seen on slopes of Mayon Volcano

State volcanologists observed lava effusion and collapse on the southwester slopes of the Mayon Volcano on Wednesday evening amid its 121st day of effusive eruption.

The Philippine Institute of Volcanology and Seismology (PHIVOLCS) shared sped-up camera footage of the lava effusion and collapse on the Mi-isi Gully, which were recorded at 8:52 p.m. of May 6, 2026.

Mayon Volcano continued its effusive eruption for the 121st consecutive day, generating incandescent lava flows, pyroclastic density currents (PDC) or “uson,” and rockfalls.

On Tuesday, PDCs were seen going down the southwestern slopes of the volcano due to lava flow collapse.

In a bulletin issued on Wednesday morning, PHIVOLCS said Mayon Volcano continued to exhibit effusive eruption activity over the past 24 hours with lava flows and minor explosive events.

The agency also observed episodic minor Strombolian activity and short-lived lava fountaining. It also logged 11 volcanic earthquakes, 283 rockfall events, and 17 PDC signals in the past 24 hours.

PHIVOLCS also reminded the public that entry into the six-kilometer radius permanent danger zone (PDZ) remains strictly prohibited due to persistent hazards. — JMA, GMA News