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 low, 0.16 bar (standard values <1 bar). The amplitude of puffing is low, ~40 mbar.

Tiltmeters analysis does not show any significant deformation of the volcano edifice

Thermal activity of explosive events is medium. The number of thermal transients in the NE sector of the crater (standard = 100) is low, 66. The amplitude of thermal transients is medium, 20 ºF. Exit velocity of pyroclasts, estimated through thermal camera analysis, is medium, 27 m/s.

MODIS thermal anomalies: no thermal anomalies.

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

SO₂ flux in the NE sector of the crater terrace is low, 56 t/d

CO₂ flux based on the C/S of 25.05 mesured at 08:20 UTC on 2024/01/04 is medium, 981 t/d

Indice di Attività Vulcanica: medium

• Seismic (VLP) rate MEDIUM
• Seismic tremor MEDIUM
• Puffing LOW
• Acustic pression of explosions LOW
• Thermal activity MEDIUM
• SO₂ flux LOW
• CO₂ flux MEDIUM
• Rockfall activity LOW

The volcanic activity is characterized by strombolian explosions located at SW and C crater sectors and degassing activity (puffing) located mainly at SW sector. In the last 24h the explosive activity produced MEDIUM acoustic pressures (max. 0.16 bar) and MEDIUM degassing activity (puffing 40 mbar). The number of VLP events shows MEDIUM values (10.8 events/hour). Thermal activity is characterized by a LOW number of transients having MEDIUM thermal amplitude and MEDIUM exit velocity of pyroclasts. MODIS/VIIRS images showed no thermal anomalies. SO2 flux shows LOW values (56 t/d). CO2 flux, estimated from a C/S ratio of 25.05, is MEDIUM (981 t/d). Rockfall activity is LOW with6 events detected in the last 24h generating LOW seismic energies. The volcanic activity index is MEDIUM.