Phivolcs raises Alert Level 1 over Bulusan Volcano

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(FILE PHOTO)

Metro Manila (CNN Philippines, May 11)— The Philippine Institute of Volcanology and Seismology (Phivolcs) on Tuesday raised Alert Level 1 over Bulusan Volcano in Sorsogon province due to increased seismic activity.

In an advisory, Phivolcs said it has recorded a total of 124 volcanic earthquakes in Bulusan since May 8. It also cited data on ground deformation along the area.

"These parameters indicate that volcanic processes are underway beneath the edifice that are likely caused by shallow hydrothermal activity," Phivolcs said.

Alert Level 1 means the volcano "is currently in an abnormal condition," according to Phivolcs.

The agency also reminded the public that entry into the four-kilometer radius Permanent Danger Zone is strictly prohibited. It also advised pilots to avoid flying close to the volcano's summit "as ash from any sudden phreatic eruption can be hazardous to aircraft."

Phivolcs assured the public it is closely monitoring developments in Bulusan.