Korovin volcano (Andreanof Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 28 October-3 November 2020 (New Activity / Unrest)
On 28 October AVO raised the Aviation Color Code and Volcano Alert Level for Korovin to Yellow and Advisory, respectively, noting that activity was above background levels. Discrete earthquakes were detected over the previous two weeks and sulfur dioxide emissions were identified four times in satellite data on 15, 20, and 26 October. Low-level seismicity continued and no surficial activity was evident in cloudy or partly cloudy satellite images through 3 November.
Wed, 28 Oct 2020, 06:0006:00 AM | BY: VN
Source: US Geological Survey Alaska Volcano Observatory (AVO)
From: Global Volcanism Program, 2020. Report on Korovin. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 28 October-3 November 2020. Smithsonian Institution and US Geological Survey.
Wed, 1 Nov 2006, 06:00
Korovin volcano (Andreanof Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 1 November-7 November 2006 (New Activity / Unrest)
The number of daily earthquakes increased in July and remained elevated into November. Episodes of volcanic tremor that first occurred in September increased in number, strength, and duration in the past several weeks. On 28 October, residents of Atka observed steam emissions to many hundreds of meters above the summit. ... Read all
Wed, 8 Mar 2006, 06:00
Korovin volcano (Andreanof Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 8 March-14 March 2006 (Continuing Activity)
AVO decreased the Concern Color Code at Korovin from Yellow to Green (the lowest level) on 8 March. After raising the Concern Color Code on 22 February in response to increased seismicity, the rate of micro-earthquakes stabilized and then declined. During 1-8 March, seismicity was near background levels and no unusual activity was seen on satellite imagery or by observers. ... Read all