Great Sitkin 1945/3
Start: March 1945 [1]
Event Type: Explosive
Max VEI: 2 [2]
Description: From Simons and Mathewson (1947): "Extrusion of the crater dome marks the latest phase of activity. The dome is thought to have formed in March, 1945, at which time a glow was visible at night from Adak Island, and Army aviators noticed clouds of steam rising from the crater. During that month a strong earthquake was felt at Sand Bay."
From Coats (1950): lava flow or plug dome, some explosive activity at Great Sitkin in 1945.
Robinson (1948) includes a picture of the 1945 lava dome at Great Sitkin, captioned: "Mass of hot lava pushing up through snow in Great Sitkin Crater, may menace a near-by Navy fueling station. The dome of molten rock, half a mile in diameter, pushed and melted its way up through the white blanket in March, 1945, cracking the snow around its periphery. Steam rises from snow being melted by the lava."
Newhall and Melson (1983) estimate the volume of this dome at about 10 x 10^6 cubic meters.
From Coats (1950): lava flow or plug dome, some explosive activity at Great Sitkin in 1945.
Robinson (1948) includes a picture of the 1945 lava dome at Great Sitkin, captioned: "Mass of hot lava pushing up through snow in Great Sitkin Crater, may menace a near-by Navy fueling station. The dome of molten rock, half a mile in diameter, pushed and melted its way up through the white blanket in March, 1945, cracking the snow around its periphery. Steam rises from snow being melted by the lava."
Newhall and Melson (1983) estimate the volume of this dome at about 10 x 10^6 cubic meters.
References Cited
[1] Geology of Great Sitkin Island, 1947
Simons, F. S., and Mathewson, D. E., 1947, Geology of Great Sitkin Island: U.S. Geological Survey Alaskan Volcano Investigations Report 0002, p. 55-67.[2] Volcanoes of the world [2nd edition], 1994
Simkin, Tom, and Siebert, Lee, 1994, Volcanoes of the world [2nd edition]: Tucson, Arizona, Geoscience Press, 349 p.[3] Exploring Aleutian volcanoes, 1948
Robinson, G. D., 1948, Exploring Aleutian volcanoes: National Geographic Magazine, v. 94, n. 4, p. 509-528.[4] Ejecta and landslides from Augustine Volcano before 2006, 2010
Waitt, R.B., 2010, Ejecta and landslides from Augustine Volcano before 2006, chapter 13 of Power, J.A., Coombs, M.L., and Freymueller, J.T., eds., The 2006 eruption of Augustine Volcano, Alaska: U.S. Geological Survey Professional Paper 1769, p. 297-319 [http://pubs.usgs.gov/pp/1769/chapters/p1769_chapter13.pdf].[5] Volcanic activity in the Aleutian Arc, 1950
Coats, R. R., 1950, Volcanic activity in the Aleutian Arc: U.S. Geological Survey Bulletin 0974-B, p. 35-49, 1 sheet, scale 1:5,000,000.
plate 1 PDF 819 KB
full-text PDF 783 KB [6] Volcanic activity on Umnak and Great Sitkin Islands, 1946-1948, 1949
Byers, F. M., and Brannock, W. W., 1949, Volcanic activity on Umnak and Great Sitkin Islands, 1946-1948: Eos, v. 30, n. 5, p. 719-734.Complete Eruption References
Volcanoes of the world [2nd edition], 1994
Simkin, Tom, and Siebert, Lee, 1994, Volcanoes of the world [2nd edition]: Tucson, Arizona, Geoscience Press, 349 p.
Hard Copy held by AVO at FBKS - CEC shelf
The geology, geochemistry and petrology of the recent magmatic phase of the central and western Aleutian Arc, 1994
Myers, J. D., 1994, The geology, geochemistry and petrology of the recent magmatic phase of the central and western Aleutian Arc: unpublished manuscript unpaged.
Explosive activity associated with the growth of volcanic domes, 1983
Newhall, C. G., and Melson, W. G., 1983, Explosive activity associated with the growth of volcanic domes: Journal of Volcanology and Geothermal Research, v. 17, n. 1/4, p. 111-131.
Hard Copy held by AVO at FBKS - CEC file cabinet
Volcanic activity in the Aleutian Arc, 1950
Coats, R. R., 1950, Volcanic activity in the Aleutian Arc: U.S. Geological Survey Bulletin 0974-B, p. 35-49, 1 sheet, scale 1:5,000,000.
plate 1 PDF 819 KB
full-text PDF 783 KB 
Volcanic activity on Umnak and Great Sitkin Islands, 1946-1948, 1949
Byers, F. M., and Brannock, W. W., 1949, Volcanic activity on Umnak and Great Sitkin Islands, 1946-1948: Eos, v. 30, n. 5, p. 719-734.
Hard Copy held by AVO at FBKS - CEC file cabinet
Exploring Aleutian volcanoes, 1948
Robinson, G. D., 1948, Exploring Aleutian volcanoes: National Geographic Magazine, v. 94, n. 4, p. 509-528.
Geology of Great Sitkin Island, 1947
Simons, F. S., and Mathewson, D. E., 1947, Geology of Great Sitkin Island: U.S. Geological Survey Alaskan Volcano Investigations Report 0002, p. 55-67.
Hard Copy held by AVO at FBKS - CEC shelf