The Philippine Institute of Volcanology and Seismology (Phivolcs) warns that Mayon Volcano may be moving toward a more explosive phase after a record spike in volcanic sulfur dioxide emissions. Phivolcs reports that Mayon emitted an average of 13,128 tonnes of SO2 per day on July 11, the highest level recorded since 2000. The agency links the sharp increase in sulfur dioxide output to conditions that can precede escalation in volcanic activity. This development heightens concern that the eruption dynamics could intensify compared with earlier phases of the unrest. Local officials are expected to use the warning to guide monitoring and preparedness measures as scientists continue to track emissions and other indicators of volcanic behavior.