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Manila Bulletin devider Philippines devider National devider Taal Volcano continues to emit high levels of sulfur dioxide

Taal Volcano continues to emit high levels of sulfur dioxide

Published Nov 6, 2021 11:46 am

TAAL VOLCANO (ALI VICOY / MANILA BULLETIN FILE PHOTO)

The Philippine Institute of Volcanology and Seismology (Phivolcs) has continued to observe high sulfur dioxide (SO2) emissions at Taal Volcano in Batangas in the past 24 hours.

In its volcano bulletin on Saturday, Nov. 6, Phivolcs said the activity at the main crater was dominated by the upwelling of hot volcanic fluids in its lake which generated plume 1,200 meters tall.

Taal Volcano's SO2 emission averaged 14,054 tons when it was last measured on Nov. 5.

Its peak emission was on Oct. 5 at 25,456 tons.

In the past 24 hours, Phivolcs also detected 18 volcanic earthquakes, including 17 volcanic tremor events having durations of two to 19 minutes, one volcano-tectonic earthquake, and low-level background tremor that has persisted since July 7.

"Based on ground deformation parameters from electronic tilt, continuous GPS and InSAR monitoring, Taal Volcano Island has begun inflating in August 2021 while the Taal region continues to undergo very slow extension since 2020," Phivolcs pointed out.

Phivolcs reminded the public that Taal Volcano remains under Alert Level 2, which means that the volcano continues to manifest "increased unrest."

"At Alert Level 2, sudden steam- or gas-driven explosions, volcanic earthquakes, minor ashfall, and lethal accumulations or expulsions of volcanic gas can occur and threaten areas within and around TVI," it pointed out.

The volcano has been under Alert Level 2 since July 23, 2021.

Phivolcs reiterated that entry into the Taal Volcano Island, which is a permanent danger zone, especially the vicinities of the main crater and the Daang Kastila fissure, is strictly prohibited.

Boating on Taal Lake is also be prohibited, it added.

Phivolcs advised the concerned local government units to continuously assess and strengthen the preparedness of previously evacuated barangays around Taal Lake in case of renewed unrest.

"Civil aviation authorities must advise pilots to avoid flying close to the volcano as airborne ash and ballistic fragments from sudden explosions and wind-remobilized ash may pose hazards to aircraft," it added.

Related Tags

sulfur dioxide Taal Volcano PHIVOLCS
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