The number of VLP seismic events (standard values 5-12) is medium, 10.8 events/hour.

The amplitude of seismic tremor is medium.

The infrasonic activity is medium. The acoustic pressure of explosions is medium, 1 bar (standard values <1 bar). The amplitude of puffing is low, ~45 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 very high. The number of rockfalls is 35 per day.

SO₂ flux in the NE sector of the crater terrace is high, 212 t/d

CO₂ flux based on the C/S of 8.59 mesured at 07:20 UTC on 2024/08/03 is very high, 7731 t/d

Indice di Attività Vulcanica: high

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

The volcanic activity is generally characterized by degassing activity and explosions located at the new NE crater sector. In the last 24h, the Stromboli volcano showed MEDIUM values of degassing activity and infrasonic amplitude of the explosions. The volcanic tremor shows MEDIUM values. The number of VLP events showed MEDIUM values (10.8 events/hour with low amplitude). MODIS/VIIRS images showed LOW thermal anomalies (max 1 MW). SO2 flux shows HIGH values (last:201 t/d), CO2 flux shows VERY HIGH values (last: 7731 t/d based on C/S value of 8.6 recorded on the 03/08/2024). The rockfall activity is VERY HIGH (35 events detected with LOW pseudo-volumes associated). The volcanic activity index is HIGH.