The Taal Volcano recorded 113 volcanic tremor episodes in the last 24 hours.
According to the Phivolcs report, it lasted one to 34 minutes.
Such tremors are still a manifestation of abnormality, a year after it had a phreatic eruption.
But nowadays, even though the volcanic quakes are in succession, the smoke emitted from its main crater is weak.
Phivolcs is also looking at the swelling of the soil on the volcano island, as well as the water temperature in the lake.