The Philippine Institute of Volcanology and Seismology (Phivolcs), in its Saturday update, also noted "weak to moderate" steaming activity from the volcano.
"Mayon Volcano’s seismic network recorded 12 volcanic earthquakes and three rockfall related events during the past 24 hours. Steaming activity was weak to moderate with white steam drifting to various directions. Crater glow was observed at Intensity II (can be seen by the naked eye) Friday night," it said.
Phivolcs said Alert Level 1 is still in effect over Mayon Volcano.
It said that while no eruption is imminent, the public still should not enter the 6-km radius Permanent Danger Zone (PDZ) due to the continuing threat from sudden small explosions and rockfalls from the upper and middle slopes of the volcano.
"Active stream/river channels and those perennially identified as lahar prone areas in the southern sector should also be avoided especially during bad weather conditions or when there is heavy and prolonged rainfall," it said. Source


