Great Sitkin volcano (Aleutian Islands): Aviation Color Code raised to Yellow
The Alaska Volcano Observatory (AVO) reported that identified elevated surface temperatures continue from the beginning of January and detections have increased over the past two months.
Thu, 13 May 2021, 07:0207:02 AM | BY: MARTIN
Satellite-based measurements of gas emissions reached elevated levels on 10 May.
In addition, slight increased seismic activity was detected by the local network.
Based on these parameters, AVO decided to raised Aviation Color Code to Yellow.
Source: Alaska Volcano Observatory volcano activity update 13 May 2021
Thu, 22 Oct 2020, 06:32
Great Sitkin volcano (Aleutian Islands, Alaska): Aviation Color Code and Alert Level lowered to GREEN/NORMAL
The Alaska Volcano Observatory (AVO) reported that a seismicity has been decreasing during the past few months. ... Read all