The number of VLP seismic events (standard values 5-12) is high, 18.1 events/hour.

The amplitude of seismic tremor is medium.

The infrasonic activity is high. The acoustic pressure of explosions is high, 1.6 bar (standard values <1 bar). The amplitude of puffing is medium, ~30 mbar.

Tiltmeters analysis does not show any significant deformation of the volcano edifice

Thermal activity of explosive events is not available. The number of thermal transients in the NE sector of the crater(standard = 100) is not available. The amplitude of thermal transients is not available. Exit velocity of pyroclasts, estimated through thermal camera analysis, is not available.

MODIS thermal anomalies: no thermal anomalies.

Rockfall activity is high. The number of rockfalls is 13 per day.

SO₂ flux in the NE sector of the crater terrace is medium, 82 t/d

CO₂ flux based on the C/S of 4.3 mesured at 23:20 UTC on 2026/08/17 is medium, 409 t/d

Indice di Attività Vulcanica: high

• Seismic (VLP) rate HIGH
• Seismic tremor MEDIUM
• Puffing MEDIUM
• Acustic pression of explosions HIGH
• Thermal activity NOT AVAILABLE
• SO₂ flux MEDIUM
• CO₂ flux MEDIUM
• Rockfall activity HIGH

The volcanic activity is characterized by Strombolian explosions located at NE crater sector and degassing (puffing/spattering) located at NE and SW crater sectors. In the last 24h, degassing activity (puffing/spattering) showed MEDIUM values (30 mbar). The explosive activity is HIGH (max acoustic pressure 1.6 bar). The volcanic tremor shows MEDIUM values. The number of VLP events is HIGH values (19.1 events/hour). MODIS/VIIRS thermal data shows no thermal anomaly in the last 24 hours. SO2 flux shows MEDIUM values (last: 82 t/d), CO2 flux is MEDIUM (last: 409 t/d). The rockfall activity is HIGH (n. 13 events detected with LOW pseudo-volumes associated). The volcanic activity index is HIGH.