MAJESTIC BUT DANGEROUS. Mount Mayon towers above Legazpi Metropolis, the provincial capital of Albay and the regional middle of Bicol, belying the hazard that lurks on its slopes because the volcano stays restive. This photograph was taken on Sept. 26, 2024. — MARK ALVIC ESPLANA
MANILA, Philippines — The Philippine Institute of Volcanology and Seismology (Phivolcs) on Sunday warned Albay province of attainable lahar as a result of heavy rainfall brought on by the shear line.
Based on Phivolcs, heavy rainfall might generate “volcanic sediment flows or lahars, muddy stream flows or muddy run-off in rivers and drainage areas” at Mayon Volcano.
“Extended and heavy rainfall might generate post-eruption lahars on main channels draining Mayon Volcano by incorporating free materials from remnant pyroclastic density present deposits from the January to March 2018 eruption,” the company mentioned in its 3:30 p.m. advisory.
Phivolcs defines a pyroclastic density present (PDC) as mixtures of sizzling fragmented volcanic particles, gases, and ash that rush down the volcanic slopes or quickly outward from a supply vent at excessive speeds.
The company mentioned the majority of erodible PDC deposits occupy the watershed areas of the Miisi, Mabinit, Buyuan, and Basud Channels in Albay.
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Phivolcs additionally warned that lahar from Mayon Volcano may threaten communities downstream of the recognized channels, probably inflicting inundation, burial, and washaways.
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“Older and erodible eruption deposits that occupy the watershed areas on the japanese and western slopes of the edifice and may be remobilized as non-eruption lahars by erosion of banks and channel beds,” it added.
Phivolcs reported that potential lahars and sediment-laden streamflows might happen alongside the next Albay channels:
- Miisi
- Binaan
- Anoling
- Quirangay
- Maninila
- Masarawag
- Muladbucad
- Nasisi
- Mabinit
- Matanag
- Basud
- Bulawan
Phivolcs suggested residents and native authorities items within the recognized danger areas to constantly monitor climate situations and take preemptive measures to make sure their security as a result of ongoing results of the shear line.
READ: Pagasa forecasts wet climate for Sunday in most elements of the nation
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