TAAL Volcano remained relatively quiet on Tuesday as it had seemingly stopped ejecting sulfur dioxide although it spewed weak plumes, according to the Philippine Institute of Volcanology and Seismology (Phivolcs).

The agency said in the past 24 hours, only four low-frequency tremors were detected. There was no trace of sulfur dioxide ejected by the volcano.





In its bulletin, Phivolcs said “sulfur dioxide emission was below instrumental detection.”

Sulfur dioxide emission is used as a parameter to measure the magma movement underneath the volcano, according to the experts.

Earthquakes, meanwhile, signify magmatic activity beneath the Taal edifice “that could lead to eruptive activity at the main crater.”

Alert Level 3 remains over Taal Volcano, which means that steam and weak phreatomagmatic explosions, volcanic tremors, ashfall and lethal volcanic gas expulsions could still occur.

The state seismology agency warned the communities beside the active river channels to be vigilant, especially when it rains.

Entry into the Taal Volcano island, as well as into areas over Taal Lake and west portion of the island within a 7-kilometers radius from the main crater, was strictly prohibited, Phivolcs said.