Known Nuclear Explosions, Summary

Known Nuclear Explosions, Summary
compiled by Wm. Robert Johnston
last modified 29 May 2009

Numbers of nuclear explosions by conducting country and year

year United States USSR/Russia United Kingdom France P.R. China other nations total

atm udg atm udg atm udg atm udg atm udg atm udg atm udg all

1945 3 3 0 3

1946 2 2 0 2

1947 0 0 0

1948 3 3 0 3

1949 1 1 0 1

1950 0 0 0

1951 15 1 2 17 1 18

1952 10 1 11 0 11

1953 11 5 2 18 0 18

1954 6 10 16 0 16

1955 14 (17) 1 7 (6) 20 1 21

1956 18 9 6 33 0 33

1957 25 (27) 4 (5) 16 7 50 5 55

1958 57 (62) 14 (15) 36 (34) 5 103 13 116

1959 0 0 0

1960 3 3 0 3

1961 10 58 1 1 1 59 12 71

1962 39 57 80 (78) 1 2 1 118 60 178

1963 45 (49) 3 0 48 48

1964 48 9 2 3 1 1 62 63

1965 39 15 1 4 1 1 59 60

1966 49 19 6 1 3 9 69 78

1967 42 23 3 2 5 65 70

1968 72 23 5 1 6 95 101

1969 61 24 1 1 1 86 87

1970 60 21 8 1 9 79 88

1971 28 29 5 1 6 57 63

1972 32 31 4 2 6 63 69

1973 27 22 6 1 7 49 56

1974 25 27 1 9 1 1 10 54 64

1975 23 35 2 1 0 61 61

1976 20 27 1 5 3 1 3 54 57

1977 23 36 9 1 1 68 69

1978 19 (20) 55 2 11 2 1 2 89 91

1979 15 52 1 10 1 1 2 78 80

1980 14 43 3 12 1 1 72 73

1981 16 37 1 12 0 66 66

1982 18 35 (34) 1 10 1 0 64 64

1983 19 39 (37) 1 9 2 0 68 68

1984 18 45 (43) 2 8 2 0 73 73

1985 17 19 1 8 0 45 45

1986 14 1 8 0 23 23

1987 16 40 (39) 1 8 1 0 65 65

1988 18 29 8 1 0 56 56

1989 15 11 1 9 0 36 36

1990 10 8 1 6 2 0 27 27

1991 9 1 6 0 16 16

1992 8 2 0 10 10

1993 1 0 1 1

1994 2 0 2 2

1995 5 2 0 7 7

1996 1 2 0 3 3

1997 0 0 0

1998 11 0 11 11

1999 0 0 0

2000 0 0 0

2001 0 0 0

2002 0 0 0

2003 0 0 0

2004 0 0 0

2005 0 0 0

2006 1 0 1 1

2007 0 0 0

2008 0 0 0

2009 1 0 1 1

total 203 (217) 907 (910) 224 (219) 756 (750) 21 24 50 160 23 22 1 14 527 1875 2402

year United States USSR/Russia United Kingdom France P.R. China other nations total

Total yield of nuclear explosions by conducting country and year

year United States USSR/Russia United Kingdom France P.R. China other nations total

atm udg atm udg atm udg atm udg atm udg atm udg atm udg all

1945 57 55 0 55

1946 42 39 0 39

1947 0 0 0

1948 104 103 0 103

1949 22 22 0 22

1950 0 0 0

1951 510 80 589 0 589

1952 11004 1 25 11029 1 11030

1953 252 440 18 710 0 710

1954 48200 122 48322 0 48322

1955 196 1 1868 2064 1 2065

1956 20820 1976 142 22938 0 22938

1957 342 2 6242 3054 9638 2 9640

1958 35650 27 16252 7570 59472 27 59499

1959 0 0 0

1960 85 85 0 85

1961 40 102357 1 1 10 102358 49 102407

1962 36639 670 152243 15 25 60 188882 770 189652

1963 471 30 0 650 650

1964 379 112 10 90 22 22 642 664

1965 555 260 20 180 35 35 980 1015

1966 2352 1850 673 13 384 1057 4053 5110

1967 1311 490 60 3320 3380 1670 5050

1968 4750 510 4800 3000 7800 5200 13000

1969 2896 870 3000 25 3000 4075 7075

1970 3202 2510 2600 3400 6000 4750 10750

1971 5117 2880 1500 15 1515 7970 9485

1972 311 1620 60 178 238 1860 2098

1973 660 8170 40 2500 2540 9130 11670

1974 603 3610 100 1600 1000 15 2600 4395 6995

1975 4015 4420 12 5 0 8527 8527

1976 4424 520 60 100 4205 15 4205 5115 9320

1977 789 530 244 5 5 1634 1639

1978 910 1130 160 156 15 20 15 2556 2571

1979 574 1410 30 178 20 3 23 2338 2361

1980 444 770 218 220 450 450 1608 2058

1981 343 820 80 73 0 1453 1453

1982 832 640 80 72 7 0 1749 1749

1983 340 780 10 186 95 0 1581 1581

1984 571 1320 200 160 45 0 2525 2525

1985 652 460 120 263 0 1533 1533

1986 866 60 114 0 904 904

1987 560 1190 25 186 140 0 2091 2091

1988 665 910 327 10 0 1957 1957

1989 359 300 100 272 0 972 972

1990 346 70 100 236 180 0 886 886

1991 389 8 196 0 484 484

1992 112 668 0 748 748

1993 70 0 70 70

1994 150 0 150 150

1995 215 200 0 415 415

1996 45 110 0 155 155

1997 0 0 0

1998 102 0 102 102

1999 0 0 0

2000 0 0 0

2001 0 0 0

2002 0 0 0

2003 0 0 0

2004 0 0 0

2005 0 0 0

2006 1 0 1 1

2007 0 0 0

2008 0 0 0

2009 4 0 4 4

total 153809 40709 281602 38168 10809 1406 11419 3638 21549 1740 3 122 479191 85783 564974

year United States USSR/Russia United Kingdom France P.R. China other nations total

Notes:

The tables enumerate total explosions and yield, respectively, for all nuclear explosions known to have been conducted worldwide. Individual nuclear detonations are counted, including multiple explosions in single nuclear tests.
In general zero-yield safety tests are not counted (5 for the United States, .. for the USSR); .. safety tests by France are included since yield data for these has not been released. Also included are detonations in warfare (2 by the United States) and for peaceful applications (.. by the USSR).
Atmospheric tests include detonations in space, underwater, and cratering bursts (shallow underground bursts where the fireball breaches the surface), although some tests reported as underground by the USSR may be cratering bursts.
Yield figures are approximate in most cases, particularly for underground tests and for the 1961-1962 atmospheric series by the USSR.
Figures for other nations include detonations by India (..), Pakistan (..), North Korea, and the South Atlantic explosion of 1979 which has been attributed to South Africa (or possibly Israel).
Sources include but are not limited to:

The map below shows locations of all nuclear tests and other detonations worldwide. Atmospheric tests are in blue, underground tests in red. Successively larger symbols indicate yields from 0 to 150 kt, from 150 kt to 1 mt, and over 1 mt.

year	United States			USSR/Russia			United Kingdom			France			P.R. China			other nations		total
year	atm	udg		atm	udg		atm	udg		atm	udg		atm	udg		atm	udg	atm	udg	all
1945	3																	3	0	3
1946	2																	2	0	2
1947																		0	0	0
1948	3																	3	0	3
1949				1														1	0	1
1950																		0	0	0
1951	15	1		2														17	1	18
1952	10						1											11	0	11
1953	11			5			2											18	0	18
1954	6			10														16	0	16
1955	14 (17)	1		7 (6)														20	1	21
1956	18			9			6											33	0	33
1957	25 (27)	4 (5)		16			7											50	5	55
1958	57 (62)	14 (15)		36 (34)			5											103	13	116
1959																		0	0	0
1960										3								3	0	3
1961		10		58	1					1	1							59	12	71
1962	39	57		80 (78)	1			2			1							118	60	178
1963		45 (49)									3							0	48	48
1964		48			9			2			3		1					1	62	63
1965		39			15			1			4		1					1	59	60
1966		49			19					6	1		3					9	69	78
1967		42			23					3			2					5	65	70
1968		72			23					5			1					6	95	101
1969		61			24								1	1				1	86	87
1970		60			21					8			1					9	79	88
1971		28			29					5			1					6	57	63
1972		32			31					4			2					6	63	69
1973		27			22					6			1					7	49	56
1974		25			27			1		9			1				1	10	54	64
1975		23			35						2			1				0	61	61
1976		20			27			1			5		3	1				3	54	57
1977		23			36						9		1					1	68	69
1978		19 (20)			55			2			11		2	1				2	89	91
1979		15			52			1			10		1			1		2	78	80
1980		14			43			3			12		1					1	72	73
1981		16			37			1			12							0	66	66
1982		18			35 (34)			1			10			1				0	64	64
1983		19			39 (37)			1			9			2				0	68	68
1984		18			45 (43)			2			8			2				0	73	73
1985		17			19			1			8							0	45	45
1986		14						1			8							0	23	23
1987		16			40 (39)			1			8			1				0	65	65
1988		18			29						8			1				0	56	56
1989		15			11			1			9							0	36	36
1990		10			8			1			6			2				0	27	27
1991		9						1			6							0	16	16
1992		8												2				0	10	10
1993														1				0	1	1
1994														2				0	2	2
1995											5			2				0	7	7
1996											1			2				0	3	3
1997																		0	0	0
1998																	11	0	11	11
1999																		0	0	0
2000																		0	0	0
2001																		0	0	0
2002																		0	0	0
2003																		0	0	0
2004																		0	0	0
2005																		0	0	0
2006																	1	0	1	1
2007																		0	0	0
2008																		0	0	0
2009												1	0	1	1
total	203 (217)	907 (910)	224 (219)	756 (750)	21	24	50	160	23	22	1	14	527	1875	2402
year	United States		USSR/Russia		United Kingdom		France		P.R. China		other nations		total