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 medium, 1 bar (standard values <1 bar). The amplitude of puffing is medium, ~50 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, 52. The amplitude of thermal transients is low, 5 ºF. Exit velocity of pyroclasts, estimated through thermal camera analysis, is low, 15 m/s.

MODIS thermal anomalies: no thermal anomalies.

Rockfall activity is low. The number of rockfalls is 2 per day.

SO₂ flux in the NE sector of the crater terrace is medium, 70 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 MEDIUM
• Acustic pression of explosions MEDIUM
• Thermal activity MEDIUM
• SO₂ flux MEDIUM
• CO₂ flux not available
• Rockfall activity LOW

The volcanic activity is characterized by strombolian explosions and degassing activity (puffing) mainly located at the SW crater sector. The number of VLP events shows MEDIUM values (11.6 events/hour). Infrasonic activity is characterized by explosions of MEDIUM to HIGH pressure (upto 1.4 bar) and puffing from MEDIUM to HIGH amplitude (50 mbar). Seismic tremor values are MEDIUM. Thermal activity at the craters is MEDIUM. MODIS/VIIRS images doesn't show thermal anomalies. The SO2 flux based on the measure of yesterday shows a slight decrease but yet at MEDIUM values (70 t/d). No new measure of CO2 flux is available in the last 24h, based on C/S ratio. Rockfall activity detected from seismic data is LOW, with 2 events having LOW energy. The volcanic activity index is MEDIUM. NB: Thermal and Infrasonic values could be underestimated due cloud cover.