Bulletins | LGS

Bulletins

Bulletin n. 7078

07/07/2024 - 07:15

The number of VLP seismic events (standard values 5-12) is medium, 10 events/hour.

The amplitude of seismic tremor is medium.

The infrasonic activity is low. The acoustic pressure of explosions is low, 0 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 high: 405 MW (01:30 UTC yesterday).

Rockfall activity is high. The number of rockfalls is 75 per day.

SO2 flux in the NE sector of the crater terrace is medium, 114 t/d

CO2 flux based on the C/S of 5.24 mesured at 03:20 UTC on 0204/07/06 is medium, 665 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 MEDIUM
  • CO2 flux MEDIUM
  • Rockfall activity HIGH

The volcanic activity is characterized by lava flows emitted from a vent located at about 500 m a.s.l. In the last 24h, degassing activity and the pressure of the explosions are absent. The volcanic tremor shows MEDIUM values. The number of VLP events shows MEDIUM values (10 events/hour). MODIS/VIIRS images showed HIGH thermal anomalies (405 MW). SO2 flux shows MEDIUM values (114 t/d). CO2 flux, based on the C/S ratio of 5.24 measured on 06/07/2024 at 01:30 UTC, is MEDIUM (665 t/d). The rockfall activity is HIGH (VERY HIGH number of events characterized by LOW pseudo-volume associated). The volcanic activity index is VERY HIGH.