ALERT LEVEL 1. Mount Bulusan in Sorsogon spews a thick plume in this photo taken on June 12, 2022. The Philippine Institute of Volcanology and Seismology hoisted the alert level 1 over the volcano on Oct. 12 due to “increased hydrothermal activity.” Photos by Michael Fugnit, Contributor
LEGAZPI CITY — The Philippine Institute of Volcanology and Seismology (Phivolcs) recorded 313 volcanic earthquakes in Mount Bulusan in Sorsogon province in the past 24 hours.
In its 8 a.m. bulletin on Thursday, Oct. 13, Phivolcs said the volcano was inflated, indicating possible eruptions.
On Wednesday, Phivolcs raised alert level 1 over the volcano due to “increased hydrothermal activity.”
The agnecy also said “a pronounced and ongoing inflationary trend” was detected since late September on the southwestern and southern slopes.
Bulusan Volcano emitted 279 tons of sulfur dioxide on Sept. 29.
Residents of Sitio (sub-village) Talistison in Barangay Mapaso in Irosin town and Barangay San Roque in Bulusan town also reported smelling sulfurous odor on Monday, and Tuesday.
On June 5 and 12, the volcano erupted, which sent ash to Juban, Magallanes, Castilla and Pilar towns, and Sorsogon City in Sorsogon and Legazpi City in Albay.
The volcano’s alert level was lowered from 1 to 0 (quiet or no alert) on Aug. 21.
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