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Sorsogon on alert vs Bulusan activity

LEGAZPI CITY -- The Province of Sorsogon is on continuous alert as a result of the renewed activity of the Bulusan Volcano.

Photo grabbed from Sorsogon PDRRMO's video
Engineeer Raden Dimaano, Provincial Disaster Risk Reduction and Management Council action officer, clarified, however, that there are no affected barangays within the four-kilometer permanent danger zone of the volcano.

Dimaano said the affected villages are in the towns of Casiguran and Juban.

He said the PDRRMC has not enforced a pre-emptive evacuation in the affected areas as a result of the phreatic explosion of the volcano on Friday.

The PDRRMC head said such activities being shown by Bulusan Volcano are but normal to the residents.

The volcano last erupted on Feb. 22.

Dimaano, however, claimed that the PGS and concerned agencies are ready if the stem-driven eruption will re-occur.

He said the Philippine Institute of Volcanology and Seismology (Phivolcs) Sorsogon Observatory headed by Crispolo Deolata has gathered ash samples to be sent to the Phivolcs central office for examination.

Phivocs resident volcanologist Eduardo Laguerta said the move is to determine if there are changes in the chemical composition of the ash that came out in the last eruption of the volcano compared to its previous eruptions.

Laguerta said there is no cause for alarm as this is a normal activity of the volcano due to the boiling of the steam in its chamber.

Based on the past activities of the volcano, he said, it will become quiet anew after the recent eruption.

The Phivolcs official said that before the recent phreatic explosion, the Phivolcs had registered 113 volcanic quakes.

While they are still waiting from the result of the examination of the Phivolcs central office on the ash samples, they will look into other barometers that can be used as bases if the volcano again erupts, like the ground deformation or inflation as a result of the melting of rocks inside the volcano.

There is also the steam or sulfur dioxide emission and the presence of earthquakes that are normally felt by the residents but are registered by Phivolcs instruments like the seismograph. (PNA)

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