Contact | RSS | EN | DE | EL | ES | FR | IT | RU

Gareloi volcano (Aleutian Islands): elevated unrest may indicates magma at shallow level

Thu, 10 Jun 2021, 15:04 | BY: MARTIN
Aerial photo of the summit of Gareloi volcano from 23 May (image: AVO)
Aerial photo of the summit of Gareloi volcano from 23 May (image: AVO)
The volcano remains restless. The seismic activity continues to be elevated and no significant change in activity has occurred since the last update.
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

Previous news

Tue, 8 Jun 2021, 20:59

Gareloi volcano (Aleutian Islands): Aviation Color Code raised to Yellow

Gareloi volcano in the clouds today (image: AVO)
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
Wed, 2 Jun 2021, 06:00

Gareloi volcano (United States) - Smithsonian / USGS Weekly Volcanic Activity Report for 2 June-8 June 2021 (New Activity / Unrest)

AVO reported that a minor increase in seismicity was first detected at Gareloi on 19 May. Beginning on 27 May the rate and size of small volcanic earthquakes increased and was sustained at that level. On 8 June AVO raised the Aviation Color Code to Yellow and the Volcano Alert Level to Advisory based on seismicity rising above baseline levels. ... Read all
Show more
Gareloi volcano
Stratovolcano 1573 m / 5,161 ft
United States, Aleutian Islands, 51.79°N / -178.79°W
Current status: normal or dormant (1 out of 5) Gareloi volcano eruptions:
1989 
Typical eruption style
unspecified