**Official monitoring by Italy’s Istituto Nazionale di Geofisica e Vulcanologia (INGV) shows Mount Vesuvius remains at green alert with all parameters at baseline levels through September 2026.** Seismic activity stayed low, with 121 events recorded (max magnitude 1.7), nearly all below magnitude 1.0 and located in the shallow crater area; geodetic data detected no magmatic deformation, temperatures were stable, and hydrothermal activity continued its long-term decline. No eruption has occurred in 2026, consistent with the volcano’s typical multi-decade quiescence since its last event in 1944. Volcanic systems can change rapidly, however, so unexpected escalation in low-frequency seismicity or gas emissions could still alter the outlook before year-end.