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Khvostof Island description and information


Official Name: Khvostof Island
Type:Caldera remnant
Most Recent Activity:
Seismically Monitored: No
Elevation: 850 ft (259 m)
Latitude: 51.9793° N
Longitude:178.2756° E
Quadrangle:Rat Islands
CAVW Number:
Nearby towns:Shemya Station 183 mi (295 km) NW
Adak 217 mi (350 km) SE
Attu Station 222 mi (358 km) NW
Atka 320 mi (514 km) NE
Anchorage 1350 mi (2172 km) NE
From Wood and Kienle (1990) [1]: "Davidof, Khvostof, and nearby small islands Pyramid and Lopy rise 100 m above a submarine platform as the remnants of a collapsed caldera. This 'Aleutian Krakatoa' is thought to have formed during the late Tertiary, but the volcano is essentially unstudied. The islands are covered by vegetation; however lava flows can be recognized on aerial photographs. Lavas and pyroclastic layers form the islands, and rocks on the northern part of Davidof and Lopy Island are intensely hydrothermally altered."
Volcanoes of North America: United States and Canada, 1990
Wood, C. A., and Kienle, Juergen, (eds.), 1990, Volcanoes of North America: United States and Canada: New York, Cambridge University Press, 354 p.

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Page modified: September 29, 2020 12:19
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