Digital Globe satellite images of the summit of Korovin volcano. The crater lake may be slightly smaller in the October 26 image relative to its extent in the August 10 image. It is possible that this is a result of a decline in runoff associated with the onset of winter. Images acquired with USGS NextView License.
Volcano(es): Korovin
Photographer: Waythomas, Chris
URL: avo.alaska.edu/image/view/162321
Korovin unrest 2020/10
Based on recent satellite detections of significant sulfur dioxide emissions and an increase in seismicity to a level above background, AVO raised the Aviation Color Code and Alert Level at Korovin Volcano to YELLOW/ADVISORY on October 28, 2020. Discrete earthquakes have been detected over the past two weeks and sulfur dioxide degassing has been detected four times in satellite data on October 15, 20 and 26. Clear satellite views show no other signs of activity at this time. AVO will continue to monitor the volcano for signs of volcanic activity.
In November, the unrest subsided, seismic activity returned to background levels and satellite observations showed no signs of further unrest. On December 3, 2020, AVO lowered the Aviation Color Code and Volcano Alert Level to GREEN/NORMAL.
Please cite the photographer and the Alaska Volcano Observatory / U.S. Geological Survey when using this image.
Full Resolution.