CNN Philippines — State volcanologists logged 99 volcanic earthquakes in Taal Volcano in Batangas province in the past 24 hours, the highest since Wednesday.
The peak this week recorded on Monday was 185.
A majority or 90 of the tremors in the past 24 hours lasted one to 11 minutes, the Philippine Institute of Volcanology and Seismology said Saturday in its bulletin.
Phivolcs also logged high levels of volcanic sulfur dioxide averaging 6,574 tons per day on Friday, as well as plumes from the main crater that rose 1,200 meters high before drifting north.
Taal is still under Alert Level 3 of the five-step warning system. The status means “magma extruding from the main crater could drive explosive eruption,” according to Phivolcs.