Bulletin n. 7229
06/12/2024 - 09:04
The number of VLP seismic events (standard values 5-12) is medium, 11.4 events/hour.
The amplitude of seismic tremor is very high.
The infrasonic activity is high. The acoustic pressure of explosions is medium, 1.2 bar (standard values <1 bar). The amplitude of puffing is high, ~110 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 MW (01:36 UTC yesterday).
Rockfall activity is low. The number of rockfalls is 7 per day.
SO2 flux in the NE sector of the crater terrace is low, 35 t/d
CO2 flux based on the C/S is not available
Indice di Attività Vulcanica: high
- Seismic (VLP) rate MEDIUM
- Seismic tremor VERY HIGH
- Puffing HIGH
- Acustic pression of explosions MEDIUM
- Thermal activity NOT AVAILABLE
- SO2 flux LOW
- CO2 flux not available
- Rockfall activity LOW
The volcanic activity is characterized by Strombolian explosions and degassing (puffing/spattering) occurring at the NE crater sector. Explosions are associated with MEDIUM pressure values (maximum 1.5 bar), with VERY HIGH degassing activity (puffing/spattering with pressure values of about 100 mbar). The volcanic tremor shows oscillations at VERY HIGH values. The noumber of VLP events is MEDIUM (11.4 events/hour). SO2 flux from NE sector is LOW (35 t/d). No CO2 flux measures is available in the last 24h. MODIS and VIIRS satellite images show LOW thermal anomalies (1 MW). Rockfall activity is LOW, with 7 events detected in the past 24 hours. The Volcanic Activity Index is HIGH.