Kasatochi Island
| Kasatochi Island | ||
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| Waters | Bering Sea | |
| Archipelago | Andreanof Islands , Aleutian Islands | |
| Geographical location | 52 ° 10 ′ 17 ″ N , 175 ° 31 ′ 6 ″ W | |
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| length | 2.9 km | |
| width | 2.4 km | |
| surface | 5.051 km² | |
| Highest elevation | 314 m | |
| Residents | uninhabited | |
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Kasatochi Island is an uninhabited volcanic island of the Andreanof Islands , which belong to the Aleutian Islands . The approximately 2.4 km long island is 15 km northwest of Atka Island .
In 1802 the island was first recorded on a nautical chart by Gavriil Andrejewitsch Sarytschew as Kosatochyey .
volcano
The 288 m high stratovolcano dominating the island has a 750 m high, wide summit crater with a crater lake. The majority of the volcanic structure, however, consists of a submarine ridge of basaltic and andesitic rock.
The Kasatochi volcano last erupted in 2008.
Explosive eruption in 2008
From August 7, 2008, a relatively significant explosive eruption (VEI4) occurred. The main part of the eruption column rose to approx. 10,000 m and the top reached approx. 15,000 m. The biologists present had to leave the island in a hurry.
The last activity observed prior to this outbreak occurred in 1899.
Individual evidence
- ↑ AVO ; downloaded on May 21, 2013
- ↑ http://www.volcano.si.edu/volcano.cfm?vn=311130
- ^ Alaska Volcano Observatory website
Web links
- Kasatochi Island in the United States Geological Survey's Geographic Names Information System
- Kasatochi Island in the Global Volcanism Program of the Smithsonian Institution (English)
- Alaska Volcano Observatory: Information and maps to the Kasatochi Volcano