Numbers of Nuclear Tests

Country Date of 1st Test Date of Last Test Largest Explosion Date of Largest Explosion Number of Tests Total Test Sites

Atmospheric Underground Underwater

USA 7/16/45 9/23/92 15 Megatons 03/01/54 210 839 (24 conducted in conjuction with the UK.) 5 1,054 Nevada, Alaska, New Mexico, Mississippi, Colorado, Japan, the Marshall Islands, Johnston Atoll and over the South Atlantic Ocean

Former USSR 08/29/49 10/24/90 58 Megatons 10/30/61 216 496 3 715 Kazakhstan, Novaya Zemlya, Ukraine, Uzbekistan and Turkmenistan

France 02/13/60 01/27/96 N/A N/A 50 160 210 Moruroa Atoll, Fangataufa Atoll, Algeria

China 10/16/64 07/28/96 N/A N/A 23 22 0 45 Lop Nur

Great Britain 10/03/52 11/26/91 2.5-3 Megatons September 1958 21 24 (conducted in conjuntion with the US.) 0 45 Nevada, Australia, Christmas Islands

India 05/18/74 05/18/74 15 kilotons 05/18/74 0 1 0 1 India

TOTAL 2,046*

Country	Date of 1st Test	Date of Last Test	Largest Explosion	Date of Largest Explosion	Number of Tests	Total	Test Sites
Atmospheric	Underground	Underwater
USA	7/16/45	9/23/92	15 Megatons	03/01/54	210	839 (24 conducted in conjuction with the UK.)	5	1,054	Nevada, Alaska, New Mexico, Mississippi, Colorado, Japan, the Marshall Islands, Johnston Atoll and over the South Atlantic Ocean
Former USSR	08/29/49	10/24/90	58 Megatons	10/30/61	216	496	3	715	Kazakhstan, Novaya Zemlya, Ukraine, Uzbekistan and Turkmenistan
France	02/13/60	01/27/96	N/A	N/A	50	160	210	Moruroa Atoll, Fangataufa Atoll, Algeria
China	10/16/64	07/28/96	N/A	N/A	23	22	0	45	Lop Nur
Great Britain	10/03/52	11/26/91	2.5-3 Megatons	September 1958	21	24 (conducted in conjuntion with the US.)	0	45	Nevada, Australia, Christmas Islands
India	05/18/74	05/18/74	15 kilotons	05/18/74	0	1	0	1	India
TOTAL		2,046*

* Total does not double count joint U.S./U.K. tests nor does it include Hiroshima and Nagasaki.

Compiled by James Williams
19 September 1996

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