Korovin Volcano, Aleutian Islands erupts
Added on 10 March:
AVO did not receive reports of activity at Korovin volcano in the Atka volcanic center 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.
The Alaska Volcano Observatory (AVO) received a report of a minor ash and steam eruption from Korovin Volcano on Atka Island, Aleutian Islands, that produced an ash column of approximately 8,000 feet (2440m) above sea level. Since then, we have received no new reports of activity at Korovin Volcano. Cloud cover and generally difficult weather conditions make direkt observations as well as satellite cover near-impossible. The eruption at Korovin Volcano may be still developing.
Korovin Volcano presently is not being seismically monitored by a standard AVO seismic network. Korovin Volcano is a 1553 m high stratovolcano on the northern part of Atka Island in the central Aleutian Islands. The volcano has two distinct summit vents about 0.6 km apart, that have been the sites of eruptive activity as recently as June 1998. Korovin has erupted several times in the past 200 years, including 1907, 1951, 1953, 1954, 1973, 1976, 1986, 1987, 1996, and 1998. All of these eruptions produced minor amounts of ash and occasional but small lava flows. Reports of the height of the ash plume produced by the 1998 eruption ranged from 4900 to 9200 m (16,000 to 30,000 feet) above sea level.
Source: abbreviated from the AVO website