The number of VLP seismic events (standard values 5-12) is high, 16.1 events/hour.

The amplitude of seismic tremor is medium.

The infrasonic activity is medium. The acoustic pressure of explosions is medium, 0.8 bar (standard values <1 bar). The amplitude of puffing is high, ~60 mbar.

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

Thermal activity of explosive events is medium. The number of thermal transients in the NE sector of the crater (standard = 100) is high, 300. The amplitude of thermal transients is low, 10 ºF. Exit velocity of pyroclasts, estimated through thermal camera analysis, is medium, 20 m/s.

MODIS thermal anomalies are medium: 14 MW (19:55 UTC yesterday).

Rockfall activity is medium. The number of rockfalls is 8 per day.

SO₂ flux in the NE sector of the crater terrace is medium, 74 t/d

CO₂ flux based on the C/S of 15.6 mesured at 03:20 UTC on 2026/07/07 is high, 1491 t/d

Indice di Attività Vulcanica: medium

• Seismic (VLP) rate HIGH
• Seismic tremor MEDIUM
• Puffing HIGH
• Acustic pression of explosions MEDIUM
• Thermal activity MEDIUM
• SO₂ flux MEDIUM
• CO₂ flux HIGH
• Rockfall activity MEDIUM

The volcanic activity of Stromboli volcano showed HIGH degassing activity (puffing/spattering values of about 60 mbar) located mainly in the NE sector, associated with MEDIUM explosive activity (max. acoustic pressure 0.8 bar), located in the NE sector. The volcanic tremor show MEDIUM values. The number of VLP events is HIGH (16.1 events/hour). Thermal anomalies detected by MODIS and VIIRS satellite images are MEDIUM (14 MW). SO2 flux is MEDIUM (74 t/d). CO2 flux is HIGH (1491 t/d). The number of rockfalls is MEDIUM, with 8 events detected in the last 24h. The volcanic activity index is MEDIUM.