The number of VLP seismic events (standard values 5-12) is medium, 11.6 events/hour.

The amplitude of seismic tremor is medium.

The infrasonic activity is medium. The acoustic pressure of explosions is low, 0.49 bar (standard values <1 bar). The amplitude of puffing is low, ~20 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 medium, 87. The amplitude of thermal transients is high, 40 ºF. Exit velocity of pyroclasts, estimated through thermal camera analysis, is medium, 29 m/s.

MODIS thermal anomalies are low: 1.95 MW (11:48 UTC yesterday).

Rockfall activity is low. The number of rockfalls is 2 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 19.05 mesured at 04:20 UTC on 2024/01/03 is medium, 1095 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 NE and C crater sectors and degassing activity (puffing) located mainly at C sector. In the last 24h the explosive activity produced MEDIUM acoustic pressures (max. 49 bar) and MEDIUM degassing activity (puffing 20 mbar). The number of VLP events shows MEDIUM values (11.6 events/hour). Thermal activity is characterized by a MEDIUM number of transients having HIGH thermal amplitude and MEDIUM exit velocity of pyroclasts. MODIS/VIIRS images showed LOW thermal anomalies. SO2 flux shows LOW values (56 t/d). CO2 flux, estimated from a C/S ratio of 19.05, is MEDIUM (1095 t/d). Rockfall activity is LOW with 2 events detected in the last 24h. The volcanic activity index is MEDIUM.