The number of VLP seismic events (standard values 5-12) is medium, 9.7 events/hour.

The amplitude of seismic tremor is medium.

The infrasonic activity is medium. The acoustic pressure of explosions is low, 0.2 bar (standard values <1 bar). The amplitude of puffing is low, ~30 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 are medium: 16 MW (01:30 UTC yesterday).

Rockfall activity is medium. The number of rockfalls is 6 per day.

SO₂ flux in the NE sector of the crater terrace is low, 53 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 LOW
• Acustic pression of explosions LOW
• Thermal activity NOT AVAILABLE
• SO₂ flux LOW
• CO₂ flux not available
• Rockfall activity MEDIUM

In the last 24h, Stromboli volcano showed MEDIUM degassing activity (puffing/spattering with values of about 30 mbar), associated with a general MEDIUM explosive activity (up to 0.3 bar). The volcanic tremor shows MEDIUM values, located at NE and SW sector. The number of VLP events is MEDIUM (9.7 events/hour). MODIS and VIIRS satellite images show MEDIUM thermal anomalies (16 MW). SO2 flux is LOW (53 t/d). No new CO2 flux measures are available in the last 24h. The rockfall activity is MEDIUM, with 6 events detected in the last 24 hours. The Volcanic Activity Index is MEDIUM.