U.S. Nuclear Test List

The United States of America conducted nuclear tests from 1945 to 1992. Officially, the United States conducted 1,054 tests during this period, including 216 atmospheric tests, as well as tests under water and in space. Most trials were conducted at the Nevada Test Site (NTS), the Marshall Islands in the Pacific, and the Atlantic Ocean. Ten trials were conducted in various places in the United States, including Alaska , Nevada outside the test site, Colorado and New Mexico.

List

The list is cited from the Federation of Atomic Scientists website. ^[one]

	Test	date	A place	Type of	purpose	Power	Notes
one	Trinity	July 16, 1945	Alamogordo , New Mexico	tower explosion	weapon development	21 ct	first ever nuclear test
Operation Crossroads
2	Abble	June 30, 1946	Bikini Atoll	bomb drop	impact assessment	21 ct
3	Baker	July 24, 1946	Bikini Atoll	underwater	impact assessment	21 ct
Operation Sandstone
four	X ray	April 14, 1948	Enivetok Atoll	tower explosion	weapon development	37 ct
five	Yoke	April 30, 1948	Enivetok Atoll	tower explosion	weapon development	49 ct
6	Zebra	May 14, 1948	Enivetok Atoll	tower explosion	weapon development	18 ct
Operation Ranger
7	Abble	January 27, 1951	Nevada Nuclear Test Site	bomb drop	weapon development	1 ct
eight	Baker	January 28, 1951	Nevada Nuclear Test Site	bomb drop	weapon development	8 ct
9	Easy	February 1, 1951	Nevada Nuclear Test Site	bomb drop	weapon development	1 ct
ten	Baker-2	February 2, 1951	Nevada Nuclear Test Site	bomb drop	weapon development	8 ct
eleven	Fox	February 6, 1951	Nevada Nuclear Test Site	bomb drop	weapon development	22 ct	Mk-6 prototype test
Operation Greenhouse
12	Dog	April 07, 1951	Enivetok Atoll	tower explosion	weapon development	81 ct	test of the first Mk-6 bomb
13	Easy	April 20, 1951	Enivetok Atoll	tower explosion	weapon development	47 ct
14	George	May 8, 1951	Enivetok Atoll	tower explosion	weapon development	225 ct	during a nuclear explosion for the first time there was a thermonuclear reaction
15	Item	May 24, 1951	Enivetok Atoll	tower explosion	weapon development	45.5 ct	first test of the principle of forcing
Operation Buster
sixteen	Abble	October 22, 1951	Nevada Nuclear Test Site	tower explosion	weapon development	less than 0.1 ct	no radioactivity detected
17	Baker	October 28, 1951	Nevada Nuclear Test Site	bomb drop	weapon development	3.5 ct
18	Charlie	October 30, 1951	Nevada Nuclear Test Site	bomb drop	weapon development	14 ct
nineteen	Dog	November 1, 1951	Nevada Nuclear Test Site	bomb drop	weapon development	21 ct
20	Easy	November 5, 1951	Nevada Nuclear Test Site	bomb drop	weapon development	31 ct
Operation jangle
21	Sugar	November 19, 1951	Nevada Nuclear Test Site	ground	impact assessment	1.2 ct
22	Uncle	November 29, 1951	Nevada Nuclear Test Site	crater	impact assessment	1.2 ct
Operation Tumbler-Snapper
23	Abble	April 1, 1952	Nevada Nuclear Test Site	bomb drop	impact assessment	1 ct
24	Baker	April 15, 1952	Nevada Nuclear Test Site	bomb drop	impact assessment	1 ct
25	Charlie	April 22, 1952	Nevada Nuclear Test Site	bomb drop	weapon development	31 ct
26	Dog	May 01, 1952	Nevada Nuclear Test Site	bomb drop	weapon development	19 ct
27	Easy	May 07, 1952	Nevada Nuclear Test Site	tower explosion	weapon development	12 ct
28	Fox	May 25, 1952	Nevada Nuclear Test Site	tower explosion	weapon development	11 ct
29th	George	June 1, 1952	Nevada Nuclear Test Site	tower explosion	weapon development	15 ct
thirty	How	June 5, 1952	Nevada Nuclear Test Site	tower explosion	weapon development	14 ct
Operation Ivy
31	Mike	October 31, 1952	Enivetok Atoll	ground	weapon development	10.4 MT	Teller-Ulam experimental thermonuclear device
32	King	November 15, 1952	Enivetok Atoll	bomb drop	weapon development	500 ct	Mk.18 heavy-duty nuclear bomb test
Operation Upshot-Knothole
33	Annie	March 17, 1953	Nevada Nuclear Test Site	tower explosion	weapon development	16 ct
34	Nancy	March 24, 1953	Nevada Nuclear Test Site	tower explosion	weapon development	24 ct
35	Ruth	March 31, 1953	Nevada Nuclear Test Site	tower explosion	weapon development	200 tons
36	Dixie	April 6, 1953	Nevada Nuclear Test Site	bomb drop	weapon development	11 ct
37	Ray	April 11, 1953	Nevada Nuclear Test Site	tower explosion	weapon development	200 tons
38	Badger	April 18, 1953	Nevada Nuclear Test Site	tower explosion	weapon development	23 ct
39	Simon	April 25, 1953	Nevada Nuclear Test Site	tower explosion	weapon development	43 ct
40	Encore	May 8, 1953	Nevada Nuclear Test Site	bomb drop	impact assessment	27 ct
41	Harry	May 19, 1953	Nevada Nuclear Test Site	tower explosion	weapon development	32 ct
42	Grable	May 25, 1953	Nevada Nuclear Test Site	rip in the air	weapon development	15 ct	shot from a 280 mm gun
43	Climax	June 4, 1953	Nevada Nuclear Test Site	bomb drop	weapon development	61 ct
Operation Castle
44	Bravo	February 28, 1954	Bikini Atoll	ground	weapon development	15 mt	experimental thermonuclear device
45	Romeo	March 26, 1954	Bikini Atoll	barge	weapon development	11 mt
46	Koon	April 6, 1954	Bikini Atoll	surface	weapon development	110 ct
47	Union	April 25, 1954	Bikini Atoll	barge	weapon development	6.9 MT
48	Yankee	May 4, 1954	Bikini Atoll	barge	weapon development	13.5 mt
49	Nectar	May 13, 1954	Enivetok Atoll	barge	weapon development	1.69 Mt
Operation teapot
50	Wasp	February 18, 1955	Nevada Nuclear Test Site	bomb drop	impact assessment	1 ct
51	Moth	February 22, 1955	Nevada Nuclear Test Site	tower explosion	weapon development	2 ct
52	Tesla	March 1, 1955	Nevada Nuclear Test Site	tower explosion	weapon development	7 ct
53	Turk	March 7, 1955	Nevada Nuclear Test Site	tower explosion	weapon development	43 ct
54	Hornet	March 12, 1955	Nevada Nuclear Test Site	tower explosion	weapon development	4 ct
55	Bee	March 22, 1955	Nevada Nuclear Test Site	tower explosion	weapon development	8 ct
56	Ess	March 23, 1955	Nevada Nuclear Test Site	crater	impact assessment	1 ct
57	Apple-1	March 29, 1955	Nevada Nuclear Test Site	tower explosion	weapon development	14 ct
58	Wasp prime	March 29, 1955	Nevada Nuclear Test Site	bomb drop	weapon development	3 ct
59	HA (High Altitude)	April 6, 1955	Nevada Nuclear Test Site	bomb drop	impact assessment	3 ct	called "high altitude" because it was intended to detonate at an altitude of 40,000 feet
60	Post	April 9, 1955	Nevada Nuclear Test Site	tower explosion	weapon development	2 ct
61	Met	April 15, 1955	Nevada Nuclear Test Site	tower explosion	impact assessment	22 ct
62	Apple-2	May 5, 1955	Nevada Nuclear Test Site	tower explosion	weapon development	29 ct
63	Zucchini	May 15, 1955	Nevada Nuclear Test Site	tower explosion	weapon development	28 ct
Operation Wigwam
64	Wigwam	May 14, 1955	Pacific Ocean	underwater	impact assessment	30 ct
Operation Project 56
Operation Redwing
Operation Project 57
Operation plumbbob
Operation Project 58
Operation Project 58 A
Operation Hardtack I
Operation Argus
Operation Hardtack II
Operation Nougat
Operation Storax
Operation niblick
Operation Whetstone
Operation flintlock
Operation Latchkey
Operation Crosstie
Operation Bowline
Operation Mandrel
Operation Emery
Operation Grommet
Operation toggle
Operation Arbor
Operation Bedrock
Operation Anvil
Operation Fulcrum
Operation Cresset
Operation Quicksilver
Operation Tinderbox
Operation Guardian
Operation Praetorian
Operation Phalanx
Operation Fusileer
Operation Grenadier
Operation Charioteer
Operation Musketeer
Operation Touchstone
Operation Cornerstone
Operation Aqueduct
Operation Sculpin
Operation Julin
1047	Lubbock	October 18, 1991	Nevada Nuclear Test Site	mine	weapon development	20-150 ct
1048	Bristol	November 26, 1991	Nevada Nuclear Test Site	mine	jointly USA and UK	less than 20 ct
1049	Junction	March 26, 1992	Nevada Nuclear Test Site	mine	weapon development	20-150 ct	contract verification
1050	Diamond fortune	April 30, 1992	Nevada Nuclear Test Site	tunnel	impact assessment	less than 20 ct	Ministry of Defense tests
1051	Victoria	June 19, 1992	Nevada Nuclear Test Site	mine	weapon development	less than 20 ct
1052	Galena-yellow	June 23, 1992	Nevada Nuclear Test Site	mine	weapon development	less than 20 ct
	Galena-orange	June 23, 1992	Nevada Nuclear Test Site	mine	security test experiment	less than 20 ct
	Galena-green	June 23, 1992	Nevada Nuclear Test Site	mine	security test experiment	less than 20 ct	all three are carried out simultaneously in one mine
1053	Hunters trophy	September 18, 1992	Nevada Nuclear Test Site	tunnel	impact assessment	less than 20 ct	Ministry of Defense tests to verify the reliability of nuclear deterrence forces
1054	Divider	September 23, 1992	Nevada Nuclear Test Site	mine	weapon development	less than 20 ct	Ministry of Defense tests to verify the safety of nuclear deterrence forces. US last nuclear test

Notes

↑ United States Nuclear Tests - By Date

Links

Trinity and what came next - a documentary about the first US nuclear tests
Nuclear Test Video

[1] United States Nuclear Tests - By Date

U.S. Nuclear Test List

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Notes

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