NUCLEAR TEST DETONATIONS OFFICIALLY ANNOUNCED
BY THE UNITED STATES, THE UNITED KINGDOM, AND THE USRR
Compiled through April 16, “1957
.
Sandstone, Eniwetok Proving Ground, April 1948
Ranger, Nevada Test Site, January & February, 1951
Greenhouse, EPG, April & May, 1951
Buster-Jangle, NTS, October & November, 1951
Tumbler-Snapper, NTS, April, May & June, 1952
Ivy, EPG, November 1952
Upshot-Knothole, NTS, March, April, May & June, 1953
Castle, EPG, March, April & May, 1954
Teapot, NTS, February, March, April & May, .1955
Wigwam, Pacific Ocean, May 1955
Redwing, EPG, May, June & July, 1956
Fr or~ruw
Trinity, New Mexico, July 16, 1945
Crossroads, Bikini Atoll, July 1946
WN
Number Cumulative
1
weeEw
U. S. Detonations
1
3
6
11
15
22
30
32
43
46
60
61
64
USSR Detonations
(As announced by the U. S. Government and/or the USSR)
1949:
1951:
September 23.
October 3, October 22,
1953:
1954:
1955:
August 12 (thermonuclear), August 23 (part of series).
October 26 (part of series).
Aug. 4, Sept. 24 (part of series), Nov. 10 (part of series),
1956:
March 21, April 2 (part of series), Aug. 24 (part of series),
Aug. 30 (part of series), Sept. 2 (part of ceries), Sept. 10
Nov. 23 ("largest thus far... in megaton range").
(announced by USSR), Nov. 17 (announced same day by U. S. and
1957:
USSR).
Jan. 20 (part of series), March &, April 3 (part of series),
April 6; April 10 (part of series), April 12 (part of series),
April 16.
United Kingdom
1952:
October 3 (Montebello Islands).
1956:
May 16, June 19 (both at Montebello Islands), Sept. 27, Oct. 4,
1953:
October 15, October 26 (both at Woomera).
Oct. 11, Oct. 21 (last four shots, all at Maralinga, constitute
fourth British series).
.
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