Korovin volcano (Andreanof Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 22 February-28 February 2006 (New Activity / Unrest)
AVO reported that the Concern Color Code at Korovin volcano was raised from Green to Yellow on 22 February due to an increase in seismicity at the volcano. Distinct seismic signals indicating unrest were recorded on 4 days between 17 and 22 January, with a sustained 11-minute-long seismic signal on 22 February. After 22 February, seismicity decreased and distinct seismic signals like those recorded earlier were not detected.
Wed, 22 Feb 2006, 06:0006:00 AM | BY: VN
Clouds obscured satellite views of the volcano after 22 February. A pilot report on the 22nd indicated that the summit area was obscured by clouds, and there were no signs of ashfall on the flanks and no steam plume above the volcano. No obvious signs of activity were seen on 23 February by observers in the village of Atka.
AVO received no reports of volcanic activity and there were no indications that an eruption was imminent.
Source: US Geological Survey Alaska Volcano Observatory (AVO)
From: Global Volcanism Program, 2006. Report on Korovin. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 22 February-28 February 2006. Smithsonian Institution and US Geological Survey.
Wed, 2 Mar 2005, 06:00
Korovin volcano (Andreanof Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 2 March-8 March 2005 (Continuing Activity)
AVO did not receive reports of activity at Korovin volcano after the original report of ash-and-steam emissions on 24 February. During 25 February to 4 March, cloud cover prohibited satellite views of the volcano and no unusual seismicity was registered. Korovin is not monitored by a standard AVO seismic network. ... Read all
Wed, 23 Feb 2005, 06:00
Korovin volcano (Andreanof Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 23 February-1 March 2005 (New Activity / Unrest)
On 24 February AVO raised the Concern Color Code at Korovin volcano from Green to Yellow after receiving a report that ash and steam were emitted from Korovin on 23 February around 1900. According to residents of Atka village near the volcano, the initial ash burst rose to a height of ~ 2.4 km a.s.l. and drifted E. ... Read all