The number of VLP seismic events (standard values 5-12) is high, 14 events/hour.

The amplitude of seismic tremor is medium.

The infrasonic activity is medium. The acoustic pressure of explosions is low, 0.51 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 high, 156. The amplitude of thermal transients is low, 0.5 ºF. Exit velocity of pyroclasts, estimated through thermal camera analysis, is low, 14 m/s.

MODIS thermal anomalies are low: 1.2 MW (01:00 UTC yesterday).

Rockfall activity is medium. The number of rockfalls is 10 per day.

SO₂ flux in the NE sector of the crater terrace is medium, 101 t/d

CO₂ flux based on the C/S is not available

Indice di Attività Vulcanica: medium

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

The volcanic activity is characterized by strombolian explosions and degassing activity (puffing) mainly located at SW and NE sectosr. In the last 24 hrs, explosive activity shows MEDIUM acoustic pressure (max 0.5 bar) and MEDIUM degassing activity (puffing 40 mbar). The number of VLP events has HIGH values (14 events/hour). Thermal activity is characterized by a HIGH number of transients having LOW thermal amplitude and LOW exit velocity of pyroclasts. The volcanic tremor is MEDIUM. MODIS/VIIRS images show LOW thermal anomalies. SO2 flux is MEDIUM (101 t/d). No measurements of CO2 flux were available in the last 24 hrs. Rockfall activity show MEDIUM values, with 10 events associated to LOW seismic energy. The volcanic activity index is MEDIUM.