Bulletin n. 7651
18/02/2026 - 08:45
The number of VLP seismic events (standard values 5-12) is medium, 8.9 events/hour.
The amplitude of seismic tremor is high.
The infrasonic activity is high. The acoustic pressure of explosions is medium, 1 bar (standard values <1 bar). The amplitude of puffing is medium, ~60 mbar.
Tiltmeters analysis does not show any significant deformation of the volcano edifice
Thermal activity of explosive events is not available. The number of thermal transients in the NE sector of the crater(standard = 100) is not available. The amplitude of thermal transients is not available. Exit velocity of pyroclasts, estimated through thermal camera analysis, is not available.
MODIS thermal anomalies are low: 1.94 MW (01:06 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 low, 57 t/d
CO2 flux based on the C/S is not available
Indice di Attività Vulcanica: medium
- Seismic (VLP) rate MEDIUM
- Seismic tremor HIGH
- Puffing MEDIUM
- Acustic pression of explosions MEDIUM
- Thermal activity NOT AVAILABLE
- SO2 flux LOW
- CO2 flux not available
- Rockfall activity LOW
In the last 24h, the volcanic activity is characterized by Strombolian explosions with HIGH acoustic pressures (average of 1 bar), located at the NE and SW crater sectors. The degassing activity (puffing/spattering), mainly located at the SW sector, shows HIGH values (average of 60 mbar). The volcanic tremor has HIGH values. The number of VLP events is MEDIUM (8.9 events/hour). MODIS and VIIRS satellite images show LOW thermal anomalies (max 1.94 MW). SO2 flux shows LOW values (57 t/d). No new data of CO2 flux are available. The number of rockfalls is LOW (1 event detected in the last 24h, with LOW pseudo-volumes involved). The volcanic activity index is MEDIUM.