Daily Reports | LGS

Daily Reports

Bulletin n. 7818

07/08/2026 - 11:18

The number of VLP seismic events (standard values 5-12) is high, 17 events/hour.

The amplitude of seismic tremor is medium.

The infrasonic activity is high. The acoustic pressure of explosions is very high, 2.3 bar (standard values <1 bar). The amplitude of puffing is medium, ~26.4 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 medium: 38 MW (11:24 UTC yesterday).

Rockfall activity is medium. The number of rockfalls is 9 per day.

SO2 flux in the NE sector of the crater terrace is medium, 90 t/d

CO2 flux based on the C/S of 18.28 mesured at 09:20 UTC on 2026/08/07 is medium, 1133 t/d

Indice di Attività Vulcanica: medium

  • Seismic (VLP) rate HIGH
  • Seismic tremor MEDIUM
  • Puffing MEDIUM
  • Acustic pression of explosions VERY HIGH
  • Thermal activity NOT AVAILABLE
  • SO2 flux MEDIUM
  • CO2 flux MEDIUM
  • Rockfall activity MEDIUM

The volcanic activity is generally characterized by strombolian explosions, located at NE crater sector, and degassing (puffing/spattering) located at NE and SW crater sectors. In the last 24h, the Stromboli volcano showed a MEDIUM degassing activity (puffing/spattering with values of about 26 mbar). The explosive activity is VERY HIGH (max acoustic pressure 2.3 bar). The volcanic tremor shows MEDIUM values. The number of VLP events shows HIGH values (17 events/hour). MODIS/VIIRS thermal data shows MODERATE thermal anomalies (max 38 MW). SO2 flux shows MEDIUM values (last: 90 t/d recorded on the 06/08/2026), CO2 flux shows MEDIUM values (last: 1133 t/d based on C/S value of 18.28 recorded on the 07/08/2026). The rockfall activity is MEDIUM (n.9 events detected with LOW to MEDIUM pseudo-volumes associated). The volcanic activity index is MEDIUM.