The seismic unrest of Mayon Volcano continues to increase as the state seismologist recorded 107 volcanic earthquakes and 241 rockfall events in the past 24 hours.
Based on the Philippine Institute of Volcanology and Seismology (Phivolcs) latest bulletin issued Tuesday, the restive Mayon Volcano also continuously effuses very slow fiery lava down the Mi-isi and Bonga gullies with 1,300 meters and 1,200 meters, respectively.
Phivolcs shared a video showing the very slow lava effusion from Mayon Volcano’s summit crater on Monday evening.
LOOK! Very slow lava effusion from Mayon Volcano’s summit crater continues for the 15th day, driving incandescent rockfall and pyroclastic density current or PDC activity along the Mi-isi and Bonga Gullies.
— PHIVOLCS-DOST (@phivolcs_dost) June 26, 2023
1/3#MayonVolcano pic.twitter.com/9uGeHVDg5h
A total of 17 Dome-collapse pyroclastic density current events (PDCs), which lasted for 3 minutes, were also recorded. This record is slightly higher than the 8 PDCs logged on Monday.
The summit crater's moderate degassing relentlessly produced steam-laden plumes that soared 750 meters high before it drifted to the general west direction and sulfur dioxide which averaged 753 tonnes per day, according to Phivolcs.
“Alert Level 3 is maintained over Mayon Volcano, which means that it is currently in a relatively high level of unrest as magma is at the crater and hazardous eruption within weeks or even days is possible,” the state seismologist said.
Meanwhile, interviewed during DZRH’s Dos Por Dos, Mayon resident volcanologist Dr. Paul Karlson Alanis said there are two scenarios likely to happen.
“Either mag tuloy-tuloy itong ganitong behavior na pinapakita ng Mayon Volcano na tahimik na naglalabas ng lava, materials. Or edi kaya, ‘yung papunta na tayo doon sa kung saan mas magiging aktibo o mas magiging biolente ang eruption ng Mayon Volcano,” he said.
He added that the situation is still "50-50".
Alanis said they are still not recommending evacuees to return to their respective homes.
Mayon resident volcanologist Dr. Paul Alanis: As of 5AM, mayroon tayong 251 rockfall events. 17 dito ang magkahalong mainit na bato at abong dumadausdos pababa. #DosPorDos pic.twitter.com/1bf0kokb6q
— DZRH NEWS (@dzrhnews) June 26, 2023