The number of VLP seismic events (standard values 5-12) is high, 19.9 events/hour.

The amplitude of seismic tremor is high.

The infrasonic activity is high. The acoustic pressure of explosions is medium, 1.37 bar (standard values <1 bar). The amplitude of puffing is medium, ~70 mbar.

Tiltmeters analysis show a deflation of 0.15 microrad at 05:30 UTC

Thermal activity of explosive events is high. The number of thermal transients in the NE sector of the crater (standard = 100) is high, 1063. The amplitude of thermal transients is low, 10 ºF. Exit velocity of pyroclasts, estimated through thermal camera analysis, is low, 10 m/s.

MODIS thermal anomalies are low: 7 MW (20:15 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 medium, 75 t/d

CO₂ flux based on the C/S of 3.56 mesured at 20:20 UTC on 2024/06/26 is medium, 454 t/d

Indice di Attività Vulcanica: high

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

The volcanic activity is characterized by strombolian explosions and puffing located at NE crater sector. In the last 24h, degassing activity was HIGH (puffing 70 mbar), associated to spattering activity located at NE crater. The pressure of the explosions is MEDIUM (max acoustic pressure 1.3 bar). The number of thermal transients by thermal cameras is HIGH, with LOW amplitude and MEDIUM exit velocity. The volcanic tremor showed HIGH to VERY HIGH values. The number of VLP events shows HIGH values (19.9 events/hour). MODIS/VIIRS images showed LOW thermal anomalies (max 3 MW). The SO2 flux measured at the NE crater sector is MEDIUM (75 t/d). CO2 flux show MEDIUM values (454 t/d). The rockfall activity is LOW. A deflation of the edifice was recorded at 5:30 UTC, coupled to an increase of seismic tremor as a result of a short-lived effusive activity (as also recorded form ROC thermal camera) from the NE crater. The volcanic activity index is HIGH.