Phivolcs: Taal Volcano continues to emit high level of sulfur dioxide

Published June 20, 2021, 11:19 AM

by Ellalyn De Vera-Ruiz

TAAL VOLCANO (PNA FILE PHOTO)

The Philippine Institute of Volcanology and Seismology (Phivolcs) has continued to detect high levels of sulfur dioxide from Taal Volcano in the past 24 hours.

In its bulletin issued on Sunday, June 20, Phivolcs said Taal Volcano’s sulfur dioxide emission averaged 4,691 tonnes daily on Saturday, June 19.

The highest sulfur dioxide flux recorded for Taal Volcano averaged 9,911 tonnes on June 10.

Phivolcs said the activity at Taal’s main crater was still dominated by the upwelling of hot volcanic fluids in its lake, which generated plumes 50 meters high.

It also recorded two volcanic tremor events having durations of 50 to 60 minutes and a low-level background tremor that has persisted since April 8, 2021.

“Based on ground deformation parameters from electronic tilt, continuous GPS and InSAR monitoring, Taal Volcano Island has begun deflating in April 2021 while the Taal region continues to undergo very slow extension since 2020,” it said.

Phivolcs pointed out that these parameters indicate overall that magmatic unrest continues to occur at shallow depths beneath the edifice, thus Alert Level 2 is maintained.

Taal Volcano has been under Alert Level 2 since March 9, 2021.

Phivolcs reiterated that there remains a possibility of sudden steam- or gas-driven explosions, volcanic earthquakes, minor ashfall, and lethal accumulations or expulsions of volcanic gas that can occur and threaten areas within and around the Taal Volcano Island.

It said that entry into the volcano island, which is a permanent danger zone, especially the vicinities of the main crater and Daang Kastila fissure, should be strictly prohibited.

 
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