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.
Wed, 23 Feb 2005, 06:0006:00 AM | BY: VN
It was followed by several smaller ash-and-steam bursts. No ashfall was reported in Atka village, nor were there reports of accompanying volcanic odors, earthquakes, or larger volcanic explosions. Satellite images of the volcano did not clearly show the presence of ash or any thermal anomalies.
On the morning of 24 February the volcano was steaming. AVO warned that low-level steam-and-ash emissions may continue and could pose a hazard to people and low- to medium-flying aircraft in the vicinity of the volcano. They further warned that if the eruption continues and begins to intensify, light ash fall could occur on parts of Atka Island, including the village of Atka.
Source: US Geological Survey Alaska Volcano Observatory (AVO)
From: Global Volcanism Program, 2005. Report on Korovin. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 23 February-1 March 2005. Smithsonian Institution and US Geological Survey.