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Kiska Volcano description and information

KISKA LINKS

SAMPLES
LOCATION
FACTS
Official Name: Kiska Volcano
Type:Stratovolcano
Most Recent Activity:June 1, 1990
Seismically Monitored: No
Elevation: 4003 ft (1220 m)
Latitude: 52.1031° N
Longitude:177.6035° E
Quadrangle:Kiska
CAVW Number:311020
Pronunciation: Sound file
Associated Features:Sirius Point
Nearby towns:Adak 44 mi (71 km) SE
Atka 144 mi (232 km) NE
Shemya Station 153 mi (246 km) NW
Attu Station 192 mi (309 km) NW
Anchorage 1212 mi (1950 km) NE
DESCRIPTION
From Miller and others (1998) [1]: "Kiska Volcano is a stratovolcano, 8.5 by 6.4 km in diameter at its base and 1221 m high, on the northern end of Kiska Island. A slightly elliptical crater, about 0.4 km in diameter and breached on the north, occupies the summit. A parasitic 30-m-high cinder cone, formed in 1962 near sea level, occurs at Sirius Point and an older parasitic cone, now leveled by marine erosion, occurs at sea level 5.6 km southwest of Kiska Volcano.

"The southern part of Kiska Island has been glacially eroded, but the volcano shows no evidence of glacial dissection [2]. Surface lava flows are thus younger than the last major glaciation. Five of the youngest lava flows (unit Qkr) have been mapped separately by Coats and others (1961) [3] based on geomorphic expression; the flows of block lava have steep fronts as much as 30 m high. Source areas of the flows range from the base of the cone to the summit. The highest flows appear to have emerged from the summit crater through the breached north wall.

"Kiska Volcano is underlain and flanked on the south by the remains of an older composite volcano; a single K-Ar age of 5.5 +/- 0.7 m.y. is cited in Marlow and others (1973) [4] for an andesitic lava flow in this older volcano."

REFERENCES CITED
[1]
Catalog of the historically active volcanoes of Alaska, 1998
citation imageMiller, T. P., McGimsey, R. G., Richter, D. H., Riehle, J. R., Nye, C. J., Yount, M. E., and Dumoulin, J. A., 1998, Catalog of the historically active volcanoes of Alaska: U.S. Geological Survey Open-File Report OF 98-0582, 104 p.
Download PDF title page PDF : 52
Download PDF intro and TOC PDF : 268 KB
Download PDF eastern part - Wrangell to Ukinrek Maars PDF : 972 KB
Download PDF central part - Chiginagak to Cleveland PDF : 2,463 KB
Download PDF western part - Carlisle to Kiska PDF : 956 KB
Download PDF references PDF : 43 KB

[2]
Reconnaissance geology of some western Aleutian Islands, Alaska, 1956
citation imageCoats, R. R., 1956, Reconnaissance geology of some western Aleutian Islands, Alaska: in Investigations of Alaskan volcanoes, U.S. Geological Survey Bulletin B 1028-E, p. 83-100, 1 sheet, scale unknown.
Download PDF full-text PDF : 4.4 MB
Download PDF plate 17 PDF : 1.6 MB

[3]
Geologic reconnaissance of Kiska Island, Aleutian Islands, Alaska, 1961
citation imageCoats, R. R., Nelson, W. H., Lewis, R. G., and Powers, H. A., 1961, Geologic reconnaissance of Kiska Island, Aleutian Islands, Alaska: in Investigations of Alaskan volcanoes, U.S. Geological Survey Bulletin B 1028-R, p. 563-581, 1 sheet, scale 1:63,360.
Download PDF full-text PDF : 5.4 MB
Download PDF plate 71 PDF : 4 MB

[4]
Tectonic history of the central Aleutian Arc, 1973
Marlow, M. S., Scholl, D. W., Buffington, E. C., and Alpha, T. R., 1973, Tectonic history of the central Aleutian Arc: Geological Society of America Bulletin, v. 84, n. 5, p. 1555-1574.

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