The number of VLP seismic events (standard values 5-12) is medium, 5.6 events/hour.

The amplitude of seismic tremor is medium.

The infrasonic activity is medium. The acoustic pressure of explosions is low, 0.06 bar (standard values <1 bar). The amplitude of puffing is low, ~8 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 medium. The number of rockfalls is 10 per day.

SO₂ flux in the NE sector of the crater terrace is low, 63 t/d

CO₂ flux based on the C/S of 9.81 mesured at 11:20 UTC on 2025/07/08 is medium, 568 t/d

Indice di Attività Vulcanica: medium

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

The volcanic activity is characterized by Strombolian explosions located at the NE crater sector. In the last 24h, the Stromboli volcano showed a MEDIUM degassing activity (puffing/spattering with values of about 8 mbar) located at NE and SW crater. The explosive activity is MEDIUM (max acoustic pressure 0.06 bar). The volcanic tremor shows MEDIUM values. The number of VLP events is MEDIUM (5.6 events/hour). MODIS/VIIRS thermal data show no thermal anomalies. SO2 flux shows LOW values (last: 63 t/d). CO2 flux, based on a C/S ratio of 9.81, is MEDIUM (568 t/d). The rockfall activity is MEDIUM (10 events detected in the last 24h having LOW seismic energies). The volcanic activity index is MEDIUM.