MANILA, Philippines – Nagbabala ang Philippine Institute of Volcanology and Seismology (Phivolcs) sa posibleng lahar flow mula sa Bulkang Mayon kasunod ng inaasahang malalakas na pag-ulan sa Bicol Region dahil sa Bagyong Uwan.
Sa abisong inilabas nitong Sabado, Nobyembre 8, sinabi ng PHIVOLCS na ang inaasahang intense hanggang torrential rains sa Bicol Region mula Sabado hanggang Linggo “could generate volcanic sediment flows or lahars, muddy streamflows, or muddy run-off in rivers and drainage areas on Mayon Volcano.”
“Intense to torrential rainfall can generate life-threatening post-eruption lahars on major channels draining Mayon Volcano by eroding loose material from remnant pyroclastic deposits of the 2018 and 2023 eruptions,” ayon pa sa PHIVOLCS.
Nagbabala ang ahensya ng sumusunod na scenario sa oras na maganap ang post-eruption lahar:
Communities along and downstream of Miisi, Binaan Mabinit, Buyuan, Anoling, Matan-ag, and Basud channels could be affected, as bulk erodible deposits occupy the watershed areas of these channels.
Older and erodible pyroclastic deposits on the southwestern slopes could feed non-eruption lahars that may affect communities in the Municipality of Guinobatan.
Similarly, erodible old pyroclastic deposits on other parts of the volcano can be washed away by intense rains and generate non-eruption lahars and sediment-laden streamflows that could affect Quirangay, Tumpa, Sua, Muladbucad, Nasisi, Nabonton, Buang, San Vicente, Bulawan, and Lidong channels.
Ayon sa PHIVOLCS, ang lahar ng Mayon ay malakas at inirerekomenda ang “increased vigilance, readiness, and, if necessary, pre-emptive evacuation of communities in pre-determined zones of lahar and related hazards in the Province of Albay.” RNT/JGC
