Prevalence of “vog” or volcanic smog was observed over the Taal Caldera since 2:00 p.m. on Tuesday, March 12, the Philippine Institute of Volcanology and Seismology (Phivolcs) said.
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Phivolcs said the areas affected by vog include Agoncillo, Laurel, Balete, Sta. Teresita, Calaca, Mabini, Mataasnakahoy, Lemery, San Nicolas, and Talisay, Batangas.
Meanwhile, Phivolcs said it recorded a total of 6,387 tons of volcanic sulfur dioxide (SO2) emission per day from the Taal Main Crater as of March 11.
Moreover, one volcano-tectonic earthquake with a duration of two minutes was only recorded on March 12, said Phivolcs.
Taal Volcano remained under Alert Level 1, which means steam-driven phreatic or gas-driven explosions may occur.