Dennis Gaviola

Article (news)

Carmelle Lacuata

ABS-CBN News

MANILA - The Philippine Institute of Volcanology and Seismology (Phivolcs) has recorded increased seismic activity at Bulusan Volcano in Sorsogon.According to its advisory released Monday night, a total of 94 volcanic earthquakes were recorded in the Bulusan Volcano area since April 12, 2024.Of this number, 90 were weak and shallow volcanic-tectonic earthquakes, and 4 were low frequency volcanic earthquakes.Phivolcs also said the slight increase in volcanic earthquake activity could be caused by “hydrothermal activity, which could lead to short-term pressurization of the edifice.”Degassing activity, on the other hand, has been very weak to moderate.Alert Level 0 (Normal) remains hoisted over Bulusan Volcano, but Phivolcs warned that there are chances of steam-driven or phreatic eruptions from the crater and/or its active vents on the summit that could occur suddenly and without warning.Phivolcs reminded local government units and the public that entry into the 4-kilometer radius Permanent Danger Zone (PDZ) should be prohibited, especially near the vents on the south-southeastern slopes due to “possible threat of sudden volcanic hazards such as rockfall, landslide, ballistic projectiles, small pyroclastic density currents or “uson” and others.”The Phivolcs uses a 5-level alert system for volcanoes.Bulusan has been under Alert Level 0 since November 2024, after it was placed under Alert 1 from October 2023.

The Philippine Institute of Volcanology and Seismology (Phivolcs) has recorded increased seismic activity at Bulusan Volcano in Sorsogon.

The Philippine Institute of Volcanology and Seismology (Phivolcs) has recorded increased seismic activity at Bulusan Volcano in Sorsogon.

Phivolcs reports increased seismic activity at Bulusan volcano

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Phivolcs reports increased seismic activity at Bulusan volcano

Rose Carmelle Lacuata,

ABS-CBN News

Published April 21, 2025 10:26 PM PHT

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Updated April 22, 2025 05:17 PM PHT

Read More:

Bulusan Volcano

Phivolcs

seismic activity

Sorsogon

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