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Bulkang Bulusan itinaas sa Alert Level 1

October 12, 2022 | 4:15pm

Bulkang Bulusan itinaas sa Alert Level 1

Smoke rises from Bulusan volcano (C) as seen from Sorsogon City, Sorsogon province on June 6, 2022. The volcano in the eastern Philippines spewed a huge, dark cloud on June 5, prompting evacuations from ash-covered towns while authorities warned of possible further eruptions.

AFP/Charism Sayat, File

MANILA, Philippines (Updated 4:39 p.m.) — Itinaas sa Alert Level 1 ang Bulkang Bulusan sa probinsya ng Sorosogon matapos makapagtala ng mahigit isang daang volcanic earthquakes, bagay na nangangahulugan na raw ng "low-level unrest," ayon sa Phivolcs.

"The Bulusan Volcano Network (BVN) has recorded a total of one hundred twenty-six (126) weak and shallow (0-5 kilometers deep) volcanic earthquakes since 5:00 AM yesterday, 11 October 2022," ayon sa state volcanologists, Miyerkules.

"Most of these events occurred in the northwestern sector and the summit area of Bulusan and are attributed to rock-fracturing processes within the edifice."

BULUSAN VOLCANO BULLETIN
12 October 2022
3:00 P.M. #BulusanVolcano https://t.co/Fn0eqC6HgN pic.twitter.com/mObPdcEZ1H
— PHIVOLCS-DOST (@phivolcs_dost) October 12, 2022

Maliban sa mga nasabing paglindol, naobserbahan na rin daw ang ilang parameters na nagpapakita ng lumalaking hydrothermal activity at kabuuang pag-aalburoto.

Ilan na riyan ang:

ground deformation (short term inflation ng southern flanks sa Bulusan simula pa Abril 2022)
volcanic carbon dioxide
sulfurous odor (iniulat ng mga residente ng Sitio Talistison, Brgy. Mapaso, Irosin at Brgy. San Roque, Bulusan noong ika-10 hanggang ika-11 ng Oktubre.

"In view of the above, DOST-PHIVOLCS is now raising the alert status of Bulusan from Alert Level 0 to Alert Level 1, which means that the volcano is currently in a state of low-level unrest," patuloy pa ng Phivolcs.

"Local government units and the public are reminded that entry into the 4-kilometer radius Permanent Danger Zone (PDZ) must be strictly prohibited and that vigilance in the 2-kilometer Extended Danger Zone (EDZ) on the southeast sector must be exercised due to the increased possibilities of sudden and hazardous phreatic eruptions."

Pinapayuhan din ng volcanologists ang civil aviation authorities na paalalahanan ang kanilang mga pilotong umiwas sa paglipad malapit sa bunganga ng bulkan. Aniya, delikado sa aircraft ang abo mula sa anumang biglaang phreatic eruption.

Pinagmamatyag din ngayon ang lahat ng mga residenteng nakatira sa mga lambak at kahabaan ng mga ilog, lalo na sa southeast, southwest at northwest sector ng edifice laban sa sediment-laden stream flows at lahar kung sakaling magkaroon ng matagal na pag-ulan kung sakaling magkaroon ng phreatic eruption.

Hunyo lang nang mapilitang lumikas ang daan-daang taga-Bikol dahil sa pagputok ng Bulkang Bulusan, bagay na nagdulot ng "heavy ash fall" at matinding amoy sa lugar.

Ang panibagong pagsusungit ng Bulusan ay naitala ilang araw lang matapos itaas sa Alert Level 2 ang Mayon, isa pang bulkan sa rehiyon din ng Bikol.