The number of VLP seismic events (standard values 5-12) is high, 17.4 events/hour.

The amplitude of seismic tremor is high.

The infrasonic activity is medium. The acoustic pressure of explosions is medium, 0.25 bar (standard values <1 bar). The amplitude of puffing is medium, ~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 high, 239. The amplitude of thermal transients is low, 3.81 ºF. Exit velocity of pyroclasts, estimated through thermal camera analysis, is low, 19 m/s.

MODIS thermal anomalies are low: 2.63 MW (00:48 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, 93 t/d

CO₂ flux based on the C/S of 9.41 mesured at 03:20 UTC on 2026/06/03 is medium, 963 t/d

Indice di Attività Vulcanica: medium

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

In the last 24h, the volcanic activity is characterized by Strombolian explosions with MEDIUM acoustic pressures (max 0.25 bar), located at the NE and SW crater sectors. The degassing activity (puffing/spattering), located at the SW sector, shows MEDIUM values (average of 20 mbar). The volcanic tremor has MEDIUM to HIGH values. The number of VLP events is HIGH (17.4 events/hour). MODIS and VIIRS satellite images show LOW thermal anomalies (max 2.63 MW). SO2 flux shows MEDIUM values (93 t/d). CO2 flux, evaluated using the C/S ratio of 9.41, measured on 03/06/2026, is MEDIUM (963 t/d). The number of rockfalls is MEDIUM (10 events detected in the last 24h, with LOW pseudo-volumes involved). The volcanic activity index is MEDIUM.