The number of VLP seismic events (standard values 5-12) is medium, 6.7 events/hour.

The amplitude of seismic tremor is medium.

The infrasonic activity is low. The acoustic pressure of explosions is low, 0.01 bar (standard values <1 bar). The amplitude of puffing is low, ~0 mbar.

Tiltmeters analysis does not show any significant deformation of the volcano edifice

Thermal activity of explosive events is low. The number of thermal transients in the NE sector of the crater (standard = 100) is low, 0. The amplitude of thermal transients is low, 0 ºF. Exit velocity of pyroclasts, estimated through thermal camera analysis, is low, 0 m/s.

MODIS thermal anomalies are low: 1 MW (01:06 UTC yesterday).

Rockfall activity is high. The number of rockfalls is 48 per day.

SO₂ flux in the NE sector of the crater terrace is high, 235 t/d

CO₂ flux based on the C/S of 3.94 mesured at 19:20 UTC on 2024/07/21 is very high, 3004 t/d

Indice di Attività Vulcanica: very high

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

In the last 24h, degassing activity and pressure of the explosions are absent. The volcanic tremor shows MEDIUM values. The number of VLP events shows MEDIUM values (6.7 events/hour). MODIS/VIIRS images showed LOW thermal anomalies (max 1 MW). SO2 flux is HIGH (235 t/d). CO2 flux, based on the C/S ratio of 3.94 measured on 21/07/2024 at 19:20 UTC, is VERY HIGH (3004 t/d). The rockfall activity is HIGH (VERY HIGH number of events characterized by LOW and MEDIUM pseudo-volume associated). The volcanic activity index is VERY HIGH.