The Philippine Institute of Volcanology and Seismology has recorded a total of 511 rockfall incidents in Mayon Volcano in Albay over the past 24 hours.
The volcano had three volcanic earthquakes and 38 pyroclastic density current (PDC) events from 5 a.m. Monday to 5 a.m. Tuesday.
It continued to have a very slow effusion of lava flow from its crater which reached as far as 2.8 kilometers along the Mi-isi Gully.
The lava flow stretched to 1.4 km along the Bonga Gully.
There were also lava collapses along the Basud Gully that reached four kilometers from the crater.
Mayon Volcano emitted a moderate 800-meter-tall plume that drifted south-southwest and southwest, generating 721 tons of sulfur dioxide flux on Monday.
The volcano’s edifice is still inflated.
Phivolcs maintained that the permanent danger zone should be kept off limits.
The volcano may cause hazards, such as rockfalls, landslides or avalanches; ballistic fragments; lava flows and lava fountaining; PDCs; moderate-sized explosions, and lahars during heavy and prolonged rainfall.
