The number of VLP seismic events (standard values 5-12) is medium, 9.8 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 are low: 1.32 MW (00:48 UTC yesterday).

Rockfall activity is low. The number of rockfalls is 1 per day.

SO₂ flux in the NE sector of the crater terrace is low, 35 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

In the last 24h, Stromboli volcano showed a volcanic tremor having MEDIUM values. The number of VLP events is MEDIUM (9.8 events/hour). the explosive activity analysed on the basis of infrasonic data was not assessed due to unfavourable weather conditions. MODIS/VIIRS thermal data show LOW thermal anomalies. SO2 flux has LOW values (35 t/d). CO2 flus was not evaluated. The rockfall activity is LOW (1 event detected in the last 24h having LOW seismic energy). The volcanic activity index is MEDIUM.