The number of VLP seismic events (standard values 5-12) is medium, 11.2 events/hour.

The amplitude of seismic tremor is medium.

The infrasonic activity is not available. The acoustic pressure of explosions is not available. The amplitude of puffing is not available

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: no rockfalls detected.

SO₂ flux in the NE sector of the crater terrace is low, 47 t/d

CO₂ flux based on the C/S is not available

Indice di Attività Vulcanica: medium

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

The volcanic activity is generally characterized by strombolian explosions and degassing (puffing/spattering) located at the SW crater sector. In the last 24h, the values of pressure of the Stromboli volcano are not clear (puffing/spattering: last values of about 51 mbar - max acoustic pressure last value of about 0.2 bar). The volcanic tremor shows MEDIUM values. The number of VLP events shows MEDIUM values (11.2 events/hour). MODIS/VIIRS thermal data shows no thermal anomalies. SO2 flux shows LOW values (last: 47 t/d recorded on the 19/01/2026), CO2 flux shows no new data (last: 337 t/d based on C/S value of 6.1 recorded on the 15/01/2026). The rockfall activity is LOW (Zero events detected). The volcanic activity index is MEDIUM. (NB Recorded data is affected by severe weather conditions: Strong wind and stormy weather)