The Philippine Institute of Volcanology and Seismology (PHIVOLCS) on Wednesday logged over 6,500 tonnes of volcanic sulfur dioxide (SO2) emission from the Mayon Volcano, the highest SO2 emission recorded in the past 15 years.
In an advisory on Wednesday night, state volcanologists said they observed an increasing trend in volcanic SO2 this February through campaign spectrometry methods.
“Volcanic SO2 flux today averaged 6,569 tonnes/day, the highest emission recorded in the past 15 years. The running average for the current month has increased to 5,503 tonnes/day from that of January 2026 which averaged 2,571 tonnes/day,” PHIVOLCS said.
Despite the surge in volcanic SO2…