Gareloi volcano (Aleutian Islands): elevated unrest may indicates magma at shallow level
Thu, 10 Jun 2021, 15:0415:04 PM | BY: MARTIN
The volcano remains restless. The seismic activity continues to be elevated and no significant change in activity has occurred since the last update.
Aerial photo of the summit of Gareloi volcano from 23 May (image: AVO)
The volcano persistently emits magmatic gases from a fumarole field on the south crater and commonly exhibits low-level seismic activity. These observations suggest the presence of shallow magma and potential interaction with a hydrothermal system. The current increase in seismicity likely reflects a change to the magmatic-hydrothermal system, but it is not clear that the likelihood of a volcanic eruption has increased. The Alaska Volcano Observatory (AVO) will continue to monitor activity to determine if the recent changes are related to influx of new magma or other changes to the magma system.
Source: Alaska Volcano Observatory volcano activity update 10 June 2021
Tue, 8 Jun 2021, 20:59
The Alaska Volcano Observatory (AVO) noted that an elevated seismic activity was recorded at the volcano on 18 May including a sustained increase of small volcano-tectonic earthquakes on 27 May. ... Read all
Thu, 1 Apr 2021, 06:31
Low power likely due to snow cover has resulted in loss of operation and communication with all seismic stations at the volcano. ... Read all