The number of VLP seismic events (standard values 5-12) is medium, 10.3 events/hour.

The amplitude of seismic tremor is high.

The infrasonic activity is medium. The acoustic pressure of explosions is medium, 1.07 bar (standard values <1 bar). The amplitude of puffing is low, ~32.2 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 low: 3.98 MW (00:48 UTC yesterday).

Rockfall activity is low. The number of rockfalls is 7 per day.

SO₂ flux in the NE sector of the crater terrace is not available

CO₂ flux based on the C/S is not available

Indice di Attività Vulcanica: high

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

The volcanic activity is generally characterized by strombolian explosions and puffing mainly located at NE crater sector. In the last 24h, the Stromboli volcano shows a MEDIUM degassing activity (puffing 32 mbar). The pressure of the explosions is MEDIUM (max acoustic pressure 1.07 bar). The thermal activity cannot be evaluated due to technical problems. The volcanic tremor shows HIGH values. The number of VLP events is MEDIUM (10.3 events/hour). MODIS/VIIRS images show LOW thermal anomalies (3.99 MW). The C/S ratio is 7.3 measured on 24/09/2024 at 19.20 UTC. The rockfall activity is LOW (7 events detected in the last 24h, with LOW seismic pseudo-volumes involved). The volcanic activity index is HIGH.