List of nuclear weapons tests of the United States - wikipedia List of nuclear weapons tests of the United States See also : List of nuclear weapons tests Trinity, part of Project Alberta, was the first ever nuclear explosion. The nuclear weapons tests of the United States were performed between 1945 and 1992 as part of the nuclear arms race. The United States conducted around 1,054 nuclear tests by official count, including 216 atmospheric, underwater, and space tests. Most of the tests took place at the Nevada Test Site ( NNSS / NTS ) and the Pacific Proving Grounds in the Marshall Islands and off Kiritimati Island in the Pacific, plus three in the Atlantic Ocean. Ten other tests took place at various locations in the United States, including Alaska, Nevada other than the NNSS / NTS, Colorado, Mississippi, and New Mexico. Contents 1 List 2 Timeline 3 References 4 Sources List United States ' nuclear testing series summary - Link to world summary of nuclear weapons tests Series or years Years covered Tests Devices fired Devices with unknown yield Peaceful use tests Non-PTBT tests Yield range ( kilotons ) Total yield ( kilotons ) Notes Alberta 1942 -- 1945 0003 ! 3 0003 ! 3 0000 ! 0000 ! 0003 ! 3 15 to 21 0057 ! 57 The project to pursue the Atomic Bomb and use it against WWII belligerents. Crossroads 1946 0002 ! 2 0002 ! 2 0000 ! 0000 ! 0002 ! 2 21 0042 ! 42 First postwar test series. Sandstone 1948 0003 ! 3 0003 ! 3 0000 ! 0000 ! 0003 ! 3 18 to 49 0104 ! 104 The first use of `` levitated '' cores made of Oralloy. Tested components for Mark 4 design. Ranger 1951 0005 ! 5 0005 ! 5 0000 ! 0000 ! 0005 ! 5 1 to 22 0040 ! 40 First tests at the Nevada Test Site. Operation originally named `` Operation Faust ''. Greenhouse 1951 0004 ! 4 0004 ! 4 0000 ! 0000 ! 0004 ! 4 46 to 225 0398 ! 398 George shot was physics experiment relating to the hydrogen bomb ; Item shot was first boosted fission weapon. Buster - Jangle 1951 0007 ! 7 0007 ! 7 0000 ! 0000 ! 0007 ! 7 small to 31 0072 ! 72 The first series in which troop maneuvers ( Desert Rock exercises ) were performed. Tumbler - Snapper 1952 0008 ! 8 0008 ! 8 0000 ! 0000 ! 0008 ! 8 1 to 31 0104 ! 104 Ivy 1952 0002 ! 2 0002 ! 2 0000 ! 0000 ! 0002 ! 2 500 to 10,400 10900 ! 10,900 The `` Mike '' shot was the first multi-megaton thermonuclear weapon. Upshot - Knothole 1953 0011 ! 11 0011 ! 11 0000 ! 0000 ! 0011 ! 11 small to 61 0252 ! 252 18,000 men exposed in Desert Rock V up to 26.6 REM. 84 exceeded current yearly limits of 5 REM / yr. Castle 1954 0006 ! 6 0006 ! 6 0000 ! 0000 ! 0006 ! 6 110 to 15,000 48200 ! 48,200 Bravo shot inspired secret Project 4.1 to study fallout victims. It over-produced by 250 % of expected yield, caused fallout over a wide area. Teapot 1955 0014 ! 14 0014 ! 14 0000 ! 0000 ! 0014 ! 14 1 to 43 0167 ! 167 Wigwam 1955 0001 ! 1 0001 ! 1 0000 ! 0000 ! 0001 ! 1 30 0030 ! 30 Project 56 1955 -- 56 0004 ! 4 0004 ! 4 0000 ! 0000 ! 0004 ! 4 0 to 0 0000 ! 0 Redwing 1956 0017 ! 17 0017 ! 17 0000 ! 0000 ! 0017 ! 17 small to 5,000 20820 ! 20,820 Test with `` energy budget ''. Competition between UCRL and LASL over budget allocation was high. Project 57 1957 0001 ! 1 0001 ! 1 0000 ! 0000 ! 0001 ! 1 0 0000 ! 0 The first safety test, asking whether an improperly ignited bomb ( as in a plane crash ) would cause a nuclear blast. Plumbbob 1957 0029 ! 29 0029 ! 29 0000 ! 0000 ! 0025 ! 25 0 to 74 0345 ! 345 Included the largest atmospheric test in CONUS. Project 58 + 58A 1957 0004 ! 4 0004 ! 4 0000 ! 0000 ! 0001 ! 1 small to 1 0001 ! 1 Four more safety tests. Hardtack I 1958 0035 ! 35 0035 ! 35 0000 ! 0000 ! 0035 ! 35 0 to 9,300 35628 ! 35,628 A series in the Pacific Proving Ground, including three rocket boosted high altitude tests called Operation Newsreel. Argus 1958 0003 ! 3 0003 ! 3 0000 ! 0000 ! 0003 ! 3 0004 ! 4 Also known as Operation Floral before becoming Argus for security reasons. Tested three weapons in the South Atlantic, trying to create an artificial energy belt in the magnetosphere. Hardtack II 1958 0037 ! 37 0037 ! 37 0000 ! 0000 ! 0024 ! 24 0 to 22 0046 ! 46 Meant to squeeze all possible testing into the time before Eisenhower 's test ban started on 30 October 1958. Planned as `` Operation Millrace '', changed to HT II when a science panel recommended to `` stop testing after the Hardtack series. '' Nougat 1961 -- 62 0044 ! 44 0044 ! 44 0000 ! 0001 ! 1 0002 ! 2 small to 67 0357 ! 357 First all - underground test series. Included first Operation Plowshare shot `` Gnome '' in Carlsbad, New Mexico, which was detonated in an underground salt dome. Sunbeam 1962 0004 ! 4 0004 ! 4 0000 ! 0000 ! 0004 ! 4 small to 2 0002 ! 2 Aka Operation Dominic II. Test of small tactical warheads, including the man - portable `` Davy Crockett ''. Last atmospheric test series. The Army 's part of Sunbeam was Operation Ivy Flats. Dominic 1962 -- 63 0031 ! 31 0031 ! 31 0000 ! 0000 ! 0031 ! 31 2 to 8,300 34640 ! 34,640 `` Frigate Bird '' was the only operational test of a missile `` mated '' with a live warhead. Series also included three high - altitude tests known as Operation Fishbowl, separated out in this text. Fishbowl 1962 0009 ! 9 0009 ! 9 0004 ! 4 0000 ! 0009 ! 9 400 to 1,400 2205 ! 2,205 The high altitude rocket part of Operation Dominic. Included several failed tests as the rockets failed for various reasons. Storax 1962 -- 63 0047 ! 47 0047 ! 47 0000 ! 0003 ! 3 0001 ! 1 1 to 115 0585 ! 585 Roller Coaster 1963 0004 ! 4 0004 ! 4 0000 ! 0000 ! 0004 ! 4 0 0000 ! 0 Storage - transportation safety experiments, measured plutonium dispersal risk. Niblick 1963 -- 64 0041 ! 41 0043 ! 43 0000 ! 0004 ! 4 0000 ! small to 249 0698 ! 698 Whetstone 1964 -- 65 0046 ! 46 0049 ! 49 0000 ! 0004 ! 4 0001 ! 1 small to 51 0476 ! 476 Flintlock 1965 -- 66 0047 ! 47 0049 ! 49 0000 ! 0002 ! 2 0000 ! small to 365 1891 ! 1,891 Latchkey 1966 -- 67 0038 ! 38 0038 ! 38 0000 ! 0003 ! 3 0000 ! small to 870 1831 ! 1,831 Crosstie 1967 -- 68 0048 ! 48 0057 ! 57 0005 ! 5 0004 ! 4 0002 ! 2 small to 1,300 3638 ! 3,638 Bowline 1968 -- 69 0047 ! 47 0058 ! 58 0000 ! 0002 ! 2 0001 ! 1 small to 1,150 2152 ! 2,152 Mandrel 1969 -- 70 0052 ! 52 0078 ! 78 0001 ! 1 0002 ! 2 0000 ! small to 1,900 5528 ! 5,528 Emery 1970 -- 71 0016 ! 16 0024 ! 24 0002 ! 2 0000 ! 0000 ! small to 220 0565 ! 565 Grommet 1971 -- 72 0034 ! 34 0039 ! 39 0000 ! 0001 ! 1 0000 ! small to 4,800 5200 ! 5,200 Included Cannikin, the largest underground explosion ever at 5 Mt, fired under the Aleutian island Amchitka. Toggle 1972 -- 73 0028 ! 28 0035 ! 35 0000 ! 0001 ! 1 0000 ! small to 250 0958 ! 958 Arbor 1973 -- 74 0018 ! 18 0020 ! 20 0000 ! 0000 ! 0000 ! small to 150 0274 ! 274 Bedrock 1974 -- 75 0027 ! 27 0029 ! 29 0000 ! 0000 ! 0000 ! small to 750 2840 ! 2,840 Anvil 1975 -- 76 0021 ! 21 0021 ! 21 0000 ! 0000 ! 0000 ! 0 to 1,000 5993 ! 5,993 Fulcrum 1976 -- 77 0021 ! 21 0024 ! 24 0000 ! 0000 ! 0000 ! small to 140 0635 ! 635 Cresset 1977 -- 78 0022 ! 22 0023 ! 23 0000 ! 0000 ! 0000 ! 0 to 150 1122 ! 1,122 Quicksilver 1978 -- 79 0016 ! 16 0016 ! 16 0000 ! 0000 ! 0000 ! 1 to 140 0717 ! 717 Tinderbox 1979 -- 80 0014 ! 14 0014 ! 14 0000 ! 0000 ! 0000 ! 1 to 140 0452 ! 452 Guardian 1980 -- 81 0014 ! 14 0014 ! 14 0000 ! 0000 ! 0000 ! 1 to 140 0322 ! 322 Praetorian 1981 -- 82 0019 ! 19 0020 ! 20 0000 ! 0000 ! 0000 ! 1 to 140 0938 ! 938 Phalanx 1982 -- 83 0018 ! 18 0019 ! 19 0000 ! 0000 ! 0000 ! 1 to 143 0365 ! 365 Fusileer 1983 -- 84 0016 ! 16 0016 ! 16 0000 ! 0000 ! 0000 ! small to 150 0521 ! 521 Grenadier 1984 -- 85 0016 ! 16 0016 ! 16 0000 ! 0000 ! 0000 ! 3 to 150 0670 ! 670 Charioteer 1985 -- 86 0016 ! 16 0016 ! 16 0000 ! 0000 ! 0000 ! small to 140 0549 ! 549 Musketeer 1986 -- 87 0014 ! 14 0016 ! 16 0000 ! 0000 ! 0000 ! 3 to 150 0970 ! 970 Touchstone 1987 -- 88 0013 ! 13 0015 ! 15 0000 ! 0000 ! 0000 ! 2 to 150 0696 ! 696 Cornerstone 1988 -- 89 0011 ! 11 0017 ! 17 0000 ! 0000 ! 0000 ! 1 to 150 0436 ! 436 Aqueduct 1989 -- 90 0010 ! 10 0013 ! 13 0000 ! 0000 ! 0000 ! small to 150 0426 ! 426 Sculpin 1990 -- 91 0007 ! 7 0009 ! 9 0000 ! 0000 ! 0000 ! 2 to 140 0478 ! 478 Julin 1991 -- 92 0007 ! 7 0009 ! 9 0000 ! 0000 ! 0000 ! small to 100 0172 ! 172 The last test series, cut off by the negotiation of the Comprehensive Test Ban Treaty. Totals 1945 - Jul - 16 to 1992 - Sep - 23 1032 1132 12 27 231 0 to 15,000 196,514 Total country yield is 36.3 % of all nuclear testing. Jump up ^ Includes all tests with potential for nuclear fission or fusion explosion, including combat use, singleton tests, salvo tests, zero yield fails, safety experiments, and bombs incapacitated by accidents but still intended to be fired. It does not include hydronuclear and subcritical tests, and misfires of a device which was subsequently fired successfully. Jump up ^ Number of tests which would have been in violation of the Partial Test Ban Treaty of 1963, such as atmospheric, space or underwater tests. Some `` peaceful use '' cratering tests which should have been violations were protested, and later quietly dropped. Jump up ^ `` Small '' refers to a value greater than zero but less than 0.5 kt. Jump up ^ Some yields are described like `` < 20 kt '' ; such are scored at one half of the numeric amount, i.e., yield of 10k in this example. `` Unknown yield '' adds nothing to the total. Timeline Graphical timeline of United States atmospheric nuclear weapons tests References Jump up ^ `` United States Nuclear Tests : July 1945 through September 1992 '' ( PDF ) ( DOE / NV - 209 REV15 ). Las Vegas, NV : Department of Energy, Nevada Operations Office. 2000 - 12 - 01. Archived from the original ( PDF ) on 2006 - 10 - 12. Retrieved 2013 - 12 - 18. Discrepancies with the table include 24 tests actually carried out by the United Kingdom at the NTS ; Fat Man and Little Boy ; four aborted tests in Operation Fishbowl ; one test, Anvil / Peninsula, that jammed during lowering in its shaft and was abandoned ; and five salvo tests listed as two enumerated tests each because they were treated that way when eventually described to the public, rather than standing on the treaty definition of a salvo test ( see Introduction - Caveat ). Jump up ^ Department of Energy, Nevada Operations Office `` United States Nuclear Tests : July 1945 through September 1992 '', DOE / NV - 209 REV15, 2000 - 12 - 01 Sources Yang, Xiaoping ; North, Robert ; Romney, Carl ( August 2000 ). `` CMR Nuclear Explosion Database ( Revision 3 ) ''. SMDC Monitoring Research. Andryushi, LA ; Voloshin, N.P. ; Ilkaev, R.I. ; Matushchenko, A.M. ; Ryabev, L.D. ; Strukov, V.G. ; Chernyshev, A.K. ; Yudin, Yu. A. Mikhailov, V.N., ed. `` Catalog of Worldwide Nuclear Testing ''. Archived from the original on 2013 - 12 - 19. Retrieved 2013 - 03 - 04. Wm Robert Johnston, PhD. `` Johnston Archive of Nuclear Weapons ''. Retrieved 2013 - 12 - 31. Nuclear weapons tests of the United States Operations `` Anvil '' `` Aqueduct '' `` Arbor '' `` Argus '' `` Bedrock '' `` Bowline '' `` Buster -- Jangle '' `` Castle '' `` Chariot '' `` Charioteer '' `` Cornerstone '' `` Cresset '' `` Crossroads '' `` Crosstie '' `` Dominic '' Starfish Prime `` Emery '' `` Fishbowl '' `` Flintlock '' `` Fulcrum '' `` Fusileer '' `` Greenhouse '' `` Grenadier '' `` Grommet '' `` Guardian '' `` Hardtack I '' `` Hardtack II '' `` Ivy '' `` Julin '' `` Latchkey '' `` Little Feller '' `` Mandrel '' `` Musketeer '' `` Niblick '' `` Nougat '' `` Phalanx '' `` Plowshare '' `` Plumbbob '' `` Praetorian '' Project 56 Project 57 Project 58 Project 58A `` Quicksilver '' `` Ranger '' `` Redwing '' `` Roller Coaster '' `` Sandstone '' `` Sculpin '' `` Storax '' `` Sunbeam '' `` Teapot '' `` Tinderbox '' `` Toggle '' `` Touchstone '' `` Trinity '' `` Tumbler -- Snapper '' `` Upshot -- Knothole '' `` Whetstone '' `` Wigwam '' Testing areas Nevada Area 15 Area 16 Area 18 Area 30 Frenchman Flat Pahute Mesa Rainier Mesa Yucca Flat other South Atlantic Pacific Proving Grounds Alamogordo Amchitka Carlsbad Central Nevada Sand Springs Range Carson National Forest Parachute Salmon Site Nevada Test and Training Range Rifle Related topics National Atomic Testing Museum Fallout : An American Nuclear Tragedy Alvin C. 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19 nuclear accident 1961 SL - 1 nuclear meltdown 1957 Kyshtym disaster 1957 Windscale fire 1957 Operation Plumbbob 1954 Totskoye nuclear exercise Bikini Atoll Hanford Site Rocky Flats Plant 1945 Atomic bombings of Hiroshima and Nagasaki Related topics Books about nuclear issues Films about nuclear issues Anti-war movement Bikini Atoll Bulletin of the Atomic Scientists France and weapons of mass destruction History of the anti-nuclear movement International Day against Nuclear Tests Nuclear close calls Nuclear - Free Future Award Nuclear - free zone Nuclear power debate Nuclear power phase - out Nuclear weapons debate Peace activists Peace movement Peace camp Russell -- Einstein Manifesto Smiling Sun Category Retrieved from `` https://en.wikipedia.org/w/index.php?title=List_of_nuclear_weapons_tests_of_the_United_States&oldid=838728250 '' Categories : Nuclear weapons American nuclear weapons testing Talk Contents About Wikipedia Català Español Italiano Magyar Русский Edit links This page was last edited on 28 April 2018, at 23 : 01. 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Question: where have nuclear explosions occurred the most in the us
Answer: the Nevada Test Site