Photo courtesy of Philippine News Agency (PNA).
State volcanologists reported fresh signs of activity at Taal Volcano after seismic events around the volcano increased over the past 24 hours.
In its Monday morning bulletin, the Philippine Institute of Volcanology and Seismology (Phivolcs) said it recorded 20 volcanic earthquakes, a noticeable rise from the nine tremors logged during the previous three-day monitoring period.
The agency said the latest seismic activity pointed to continued movement beneath the volcanic edifice, although no hazardous eruption was being monitored as of the latest observation.
Phivolcs also measured sulfur dioxide emissions at 590 metric tons on Sunday, describing the output as relatively weak compared with previous readings.
Monitoring teams did not observe any upwelling of hot volcanic fluids in the main crater lake on Volcano Island during the latest assessment.
The agency likewise said no volcanic smog, or vog, had been detected around the volcano during the observation period.
Despite the increased seismic activity, Taal Volcano remained under Alert Level 1, which indicates low-level volcanic unrest.
Authorities again reminded the public that entry into Volcano Island, boating on Taal Lake, and flying aircraft close to the volcano remain prohibited due to potential hazards.