MAYON VOLCANO remained highly active over the weekend, continuing to have “quiet lava effusion from the new summit lava dome and lava collapse,” according the Philippine Institute of Volcanology and Seismology’s (Phivolcs) report as of Jan. 21. Phivolcs said “14 rockfall events and 10 pyroclastic density currents or PDCs were recorded by Mayon’s seismic monitoring network” from Saturday to Sunday early morning. The agency also said that at present, “the Miisi lava flow has advanced to three (3) kilometers from the summit crater well within the Permanent Danger Zone (PDZ). Weak ash clouds were lofted from the rockfall events as well as from the persistent disintegration of lava on the advancing front of the Miisi lava flow before drifting to the southwest.” Alert Level 3 remains in effect, which means that Mt. Mayon is still in “a relatively high level of unrest and hazardous eruption is still possible within weeks or even days.”

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