In the past 24 hours, the Philippine Institute of Volcanology and Seismology (Phivolcs) has recorded 2 volcanic earthquakes and 306 rockfall events in Mayon Volcano.
In its bulletin issued at 8 AM, Phivolcs said it also observed that the Mayon Volcano’s summit crater produced steam-laden plumes with a height of 700 meters and it is drifting northwest.
The country’s most active volcano also effused "very slow" lava flow activity which reached the Miisi and Bonga gullies within 1 kilometers.
The Mayon Volcano has emitted 193 tonnes of sulfur dioxide since Wednesday, and it has exhibited fair crater glow or “banaag” and incandescent rockfall shed from fluidal lava.
In addition, Phivolcs also observed 3 dome-collapse pyroclastic density currents (PDCs) that lasted three 3 to 6 minutes, which is lower as compared to 7 PDCs with 4 minutes long which was recorded earlier.
According to the state seismologist, Mayon Volcano remained under Alert Level 3 as it is showing a "relatively high level of unrest.
It said that the "magma is at the crater and hazardous eruption is possible within weeks or even days.”
Phivolcs is still prohibiting aircraft from flying close to the volcano’s summit, and it advised the public to remain vigilant against pyroclastic density currents, lahars, and sediment-laden streamflows.
As of this writing, a total of 9,167 families or 37,682 individuals living in the 6-kilometers and 8-kilometer danger zone have been affected.
Phivolcs earlier said that there is a possibility that the danger zone may be extended to 8 kilometers once Alert Level 4 has been hoisted.
