Taal Volcano emits record high sulfur dioxide

Taal Volcano in Batangas emitted a record-high amount of sulfur dioxide (SO2) averaging 14,326 tonnes per day on June 28, the highest ever recorded.

This continuous high level of SO2 is producing volcanic smog or vog over Taal, with steam-rich plumes reaching 2.5 kilometers high and ten volcanic earthquakes detected.

Exposure to vog can cause irritation to the eyes, throat, and respiratory tract, with vulnerable groups being most at risk.

Phivolcs has received reports of adverse effects from vog on residents of Tanauan City and Talisay, and on aquaculture workers.

The sulfur dioxide gas emitted by Taal Volcano has reached Calabarzon, Metro Manila, and other parts of Luzon, according to PHIVOLCS.

Phivolcs initially stated the haze in Metro Manila was due to pollution from human activities but later confirmed it was volcanic smog using satellite data.

Satellite data showed SO2 plumes extending from near-ground levels to almost 20 kilometers above sea level, covering several provinces and the National Capital Region.

Alert Level 2 remains in effect for Taal Volcano due to magmatic unrest at shallow depths.