The Philippine Institute of Volcanology and Seismology has noticed an increased ground deformation at Kanlaon Volcano.
An advisory on Saturday afternoon stated that since Friday evening, the middle to upper portion of the eastern edifice had been experiencing inflation or swelling.
There was a sharp increase in inflationary tilt at 7:20 p.m. on Friday, which meant a sudden pressure within the upper portion of the edifice.
Inflation activities were also recorded over the southeastern flank and deflation activities were recorded over the western flank.
Meanwhile, sulfur dioxide emissions on Friday averaged 5,763 tonnes a day, close to average emissions since the June 3, 2024 eruption.
“The overall parameters may indicate that the shallow magma conduit of the volcano is undergoing pressurization that may lead to an eruption broadly similar to the 9 December 2024 event,” the statement read.
The Kanlaon Volcano, which straddles the provinces of Negros Occidental and Negros Oriental, is currently at Alert Level 3 or magmatic unrest.
“Local government units and DRRM councils must also vigilantly monitor weather conditions in case heavy rainfall occurs and generates lahars and sediment-laden streamflows in channels draining the southern flanks of the volcano,” PHIVOLCS continued.
Earlier, PHIVOLCS recorded 11 volcanic earthquakes and 5,763 tonnes of sulfur dioxide on Friday.
The last eruption occurred at 3:03 p.m. on December 9, prompting PHIVOLCS to raise its status to Alert Level 3. —Jiselle Anne Casucian/VBL, GMA Integrated News
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