The number of VLP seismic events (standard values 5-12) is medium, 11.7 events/hour.

The amplitude of seismic tremor is low.

The infrasonic activity is medium. The acoustic pressure of explosions is low, 0.65 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 low. 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 low. The number of rockfalls is 3 per day.

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

CO₂ flux based on the C/S of 26.7 mesured at 00:20 UTC on 2024/03/17 is medium, 497 t/d

Indice di Attività Vulcanica: medium

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

The volcanic activity is characterized by strombolian explosions located at NE crater and degassing activity (puffing) located at SW sector. In the last 24h Stromboli volcano shows explosive activity with general MEDIUM acoustic pressure (max 0.65 bar) and MEDIUM degassing activity (puffing 30 mbar). The number of VLP events shows MEDIUM values (11.75 events/hour). The volcanic tremor is LOW. MODIS/VIIRS images don't show thermal anomalies. No new data of SO2 flux are available. CO2 flux, based on the C/S ratio of 26.7, measured on 17/03/2024 at 00:20 UTC, is MEDIUM (497 t/d). Rockfall activity is characterized by LOW number of events (3 events detected in the last 24h) with LOW seismic pseudo-volumes involved. The volcanic activity index is MEDIUM.