The number of VLP seismic events (standard values 5-12) is medium, 11 events/hour.

The amplitude of seismic tremor is high.

The infrasonic activity is high. The acoustic pressure of explosions is low, 0.6 bar (standard values <1 bar). The amplitude of puffing is medium, ~70 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 low. The number of rockfalls is 4 per day.

SO₂ flux in the NE sector of the crater terrace is medium, 85 t/d

CO₂ flux based on the C/S of 9.94 mesured at 19:20 UTC on 2024/11/29 is high, 1545 t/d

Indice di Attività Vulcanica: high

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

The volcanic activity is primarily characterized by Strombolian explosions and degassing (puffing/spattering) occurring at the NE crater sector. Explosions are associated with MEDIUM pressure values (maximum ~0.9 bar). Over the past 24 hours, Stromboli volcano exhibited HIGH degassing activity (puffing/spattering with pressure values of ~70 mbar). It should be noted that unfavorable meteorological conditions over the same period may have influenced the accuracy of infrasonic estimates. The volcanic tremor is HIGH. The frequency of VLP events is MEDIUM (11 events per hour). SO2 flux is MEDIUM (85 t/d). CO2 flux is HIGH (daily mean of 1545 t/d, based on a C/S ratio of 9.94 measured on 29/11/2024 at 19:20 UTC). MODIS and VIIRS satellite thermal anomalies are unavailable due to persistent cloud coverage. Rockfall activity is LOW, with 4 events detected in the past 24 hours. The Volcanic Activity Index is HIGH.