Akutan 1946/12

Start: December 1946 [1]

Stop: January 1947 [2]

Event Type: Explosive

Max VEI: 2 [1]

Event Characteristics:
  • "Fire", "Glowing", or incandescence [4] [5]

Description: From Byers and Barth (1953): "The most recent lava eruption of Akutan volcano was first seen on January 4, 1947, at 4 pm. An Associated Press article dated January 8 quoted a Navy report that the lava had flowed down the sides of the volcano threatening Akutan village. * * * Actually, inasmuch as the lava of the January, 1947, eruption did not flow out of the crater, the village was never threatened by flowing lava. The small lava tongue that extends through the crater gap and down the crater gorge is part of the December, 1929 lava flow, according to a local resident, Axel Swenson (Finch, 1935, p. 159)." Specimens of the lava flow were collected and analyzed by thin section and found to be saturated calcic basalt.
Seventy-five residents were evacuated from Akutan Island in January, 1947.
A January 11, 1947 Associated Press article describes the lava flow: "A half-mile stream of red-hot lava was described today in the first eye witness account of this week's eruptions of Akutan and Shishaldin volcanoes. * * * Lt. P.T. Kissling, * * * piloted a long range patrol plane * * * from which J.C. Betterton, chief photographer's mate * * * photographed the spectacles.
"Flight conditions were bad, but Lieutenant Kissling reported:
"'Arriving over Akutan peak at dawn, the mountain presented a rare sight, in that visiblity was unlimited in the area, permitting eruptions to be observed in detail. They (eruptions) were confined to newly-formed cone about 300 feet high within the larger crater of Akutan Peak which is three miles in diameter.
"'A red stream of molten lava was flowing down the peak for a distance of about half mile, ending in a lake of greenish brown water formed in melted ice of the glacier.
"'An unforgettable sight of colors was noted -- the red-orange lava and the bright orange flames from lava-flow contrasting with dirty-gray ash on the snow -- the ice in the crater -- and the pure white snow untouched by the ashes.'
"On one flight above the cone, the plane flew through the smoke, and the cabin filled with acrid fumes."
And from Unknown (1949): "* * * Akutan volcano erupted during January 1947, and a thick flood of lava covering an area one half mile square was poured out into the crater. Very little ash fell on Akutan village then, because fortunately the wind remained in the right direction to blow the erupting ash out to sea. At the onset of the 1947 eruption, the commandant of the Seventeenth Naval District at Kodiak ordered a Navy auxiliary tug to evacuate the villagers if necessary."

Impact: Akutan islanders were temporarily evacuated in 1947 due to volcanic activity. [6] [7]

References Cited

[1] 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.

[2] Volcanic activity on Akun and Akutan Islands, 1953

Byers, F. M., and Barth, T. F. W., 1953, Volcanic activity on Akun and Akutan Islands: in Pacific Science Congress, 7, Proceedings, v. 2, New Zealand, 1949, Geology, p. 382-397.

[3] Aleutian volcano erupts [Akutan Volcano], 1949

Unknown, 1949, Aleutian volcano erupts [Akutan Volcano]: Earth Science Digest, v. 3, n. 11, p. 13.

[4] Volcano erupts near Kodiak, 1947

Associated Press, 1947, Volcano erupts near Kodiak: Sitka Sentinel, Sitka, AK, v. VIII, n. 12, January 8, 1947, p. 1.

[5] Navy pilot describes lava stream in eruption of Aleutian volcano, 1947

Associated Press, 1947, Navy pilot describes lava stream in eruption of Aleutian volcano: Portland Sunday Telegram and Sunday Press Herald, Portland, ME, January 12, 1947, p. A-11.

[6] Volcanic activity in Alaska: September 1991-September 1992, 1993

McGimsey, Game, 1993, Volcanic activity in Alaska: September 1991-September 1992: Earthquakes and Volcanoes, v. 24, n. 2, p. 60-73.

[7] 2nd volcano in Aleutians erupts, 1947

Associated Press, 1947, 2nd volcano in Aleutians erupts: Sitka Sentinel, v. VIII, n. 18, January 10, 1947, p. 1, 4.

Complete Eruption References

Volcanic activity on Akun and Akutan Islands, 1953

Byers, F. M., and Barth, T. F. W., 1953, Volcanic activity on Akun and Akutan Islands: in Pacific Science Congress, 7, Proceedings, v. 2, New Zealand, 1949, Geology, p. 382-397.
Hard Copy held by AVO at FBKS - CEC file cabinet

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

Aleutian volcano erupts [Akutan Volcano], 1949

Unknown, 1949, Aleutian volcano erupts [Akutan Volcano]: Earth Science Digest, v. 3, n. 11, p. 13.
Hard Copy held by AVO at FBKS - CEC file cabinet

The geology of Great Sitkin Island volcano, Aleutian Islands, 1947

Turner, T. E., 1947, The geology of Great Sitkin Island volcano, Aleutian Islands: University of Washington unpublished M.S. thesis, 36 p.
full-text PDF 11 MB

2nd volcano in Aleutians erupts, 1947

Associated Press, 1947, 2nd volcano in Aleutians erupts: Sitka Sentinel, v. VIII, n. 18, January 10, 1947, p. 1, 4.
Hard Copy held by AVO at FBKS - CEC file cabinet

Volcano erupts near Kodiak, 1947

Associated Press, 1947, Volcano erupts near Kodiak: Sitka Sentinel, Sitka, AK, v. VIII, n. 12, January 8, 1947, p. 1.
Hard Copy held by AVO at FBKS - CEC file cabinet

Navy pilot describes lava stream in eruption of Aleutian volcano, 1947

Associated Press, 1947, Navy pilot describes lava stream in eruption of Aleutian volcano: Portland Sunday Telegram and Sunday Press Herald, Portland, ME, January 12, 1947, p. A-11.
Hard Copy held by AVO at FBKS - CEC file cabinet

Akutan volcano, 1935

Finch, R. H., 1935, Akutan volcano: Zeitschrift fuer Vulkanologie, v. 16, n. 3, p. 155-160, 4 plates, scale unknown.
Hard Copy held by AVO at FBKS - CEC file cabinet

Volcano again emits lava in north islands, eruption recalls earlier action in Aleutians, 1949

Unknown, 1949, Volcano again emits lava in north islands, eruption recalls earlier action in Aleutians: Nevada Mining Journal, Reno, NV, June 2, 1949, p. 9.
Hard Copy held by AVO at FBKS - CEC file cabinet