The number of VLP seismic events (standard values 5-12) is medium, 10.5 events/hour.

The amplitude of seismic tremor is medium.

The infrasonic activity is high. The acoustic pressure of explosions is high, 1.5 bar (standard values <1 bar). The amplitude of puffing is high, ~67 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 27 per day.

SO₂ flux in the NE sector of the crater terrace is low, 25 t/d

CO₂ flux based on the C/S of 16.07 mesured at 21:20 UTC on 2026/03/06 is medium, 404 t/d

Indice di Attività Vulcanica: medium

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

In the last 24h, Stromboli volcano showed MEDIUM to HIGH degassing activity (puffing/spattering values of about 65 mbar) located mainly in the SW sector, associated with up to HIGH explosive activity (max. acoustic pressure 1.5 bar), located mainly in the NE sector. The volcanic tremor has MEDIUM values. The number of VLP events is MEDIUM (10.5 events/hour). No thermal anomaly is detected in by MODIS and VIIRS satellite images in the last 24h. SO2 flux is LOW (25 t/d). CO2 flux data is MEDIUM (404 t/d), retreived by C/S ratio of 16.07 measured at 21:20UTC of yesterday. The number of rockfalls is HIGH, with 27 events detected in the past 24h, with LOW events amplitude. The volcanic activity index is MEDIUM.