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Timeline of nuclear tests

 

Nuclear Tests Year Treaties

3 September: North Korea conducts an underground nuclear test

2017  

9 September: North Korea conducts an underground nuclear test

2016  

6 January: North Korea conducts an underground nuclear test

2016  
  2014 Signature and ratification by 44 nuclear states is required for the Treaty to enter into force. So far 41 of these States have signed and 36 have ratified it.
12 February: North Korea conducts an underground nuclear test 2013  
25 May: North Korea conducts an underground nuclear test 2009  
  2008 20 May: 178 of 193 States have signed the CTBT and 144 States have ratified it
  2007 31 December: 244 out of 321 IMS stations have been built and 214 have been certified. Ten out of 16 radionuclide laboratories have been certified.
9 October: North Korea conducts a nuclear test at its Punggye-ri site 2006 31 December: 244 out of 321 IMS stations had been built and 184 have been certified. Nine out of 16 radionuclide laboratories have been certified.
10 February: North Korea announces it has nuclear weapons 2005 31 December: 219 out of 321 IMS stations have been built and 156 have been certified. Six out of 16 radionuclide laboratories have been certified.
  2004 31 December: 204 out of 321 IMS stations have been built and 109 have been certified. Five out of 16 radionuclide laboratories have been certified.
  2003

31 December: 150 out of 321 IMS stations have been built and 83 have been certified. Three out of 16 radionuclide laboratories had been certified.

22 August: Switzerland's DAVOX station is certified as the ninth of 120 auxiliary seismic stations comprising the International Monitoring System (IMS).

30 April: Mauritania becomes the 100th country to ratify the Comprehensive Nuclear Test Ban Treaty (CTBT).

India conducts a series of 5 nuclear explosions on 11 and 13 May, at Pokaran in the Rajasthan Desert.

Pakistan conducts a series of 6 nuclear explosions on 28 and 30 May in Beluchistan.

1998  
France and China conduct their last nuclear explosive tests 1996

African Nuclear-Weapon-Free Zone Treaty, ANWFZ (Treaty of Pelindaba).

24 September: the Comprehensive Nuclear Test Ban Treaty (CTBT: Treaty text, CTBTO) is opened for signature in New York; 71 States, including the five nuclear-weapon States, sign the Treaty that day.

  1995 Southeast Asia Nuclear-Weapon-Free Zone Treaty (Treaty of Bangkok)
The United States conduct its last nuclear explosive test 1992  
The United Kingdom conducts its last nuclear explosive test 1991  
The Soviet Union conducts its last nuclear explosive test 1990  
  1985 South Pacific Nuclear Free Zone Treaty, SPNFZ (Treaty of Rarotonga)
  1976 The United States and the Soviet Union sign the Treaty on Underground Nuclear Explosions for Peaceful Purposes (Peaceful Nuclear Explosions Treaty, PNE), limiting the yield of individual nuclear explosions conducted outside nuclear weapon test sites to 150 kilotons
India conducts a nuclear explosion 'for peaceful purposes' at Pokaran in the Rajasthan Desert 1974 The United States and the Soviet Union sign the Treaty on the Limitation of Underground Nuclear Weapon Tests (Threshold Test-Ban Treaty, TTBT), limiting the yield of such tests to 150 kilotons
  1968 Treaty of the Non-Proliferation of Nuclear Weapons (NPT), obliging non-nuclear-weapon State Parties not to possess, manufacture or acquire nuclear weapons or other nuclear explosive devices, and obliging nuclear weapon State Parties not to transfer to any recipient whatsoever nuclear weapons or other nuclear explosive devices and committing them to the goal of nuclear disarmament
  1967 Treaty for the Prohibition of Nuclear Weapons in Latin America and the Caribbean (Treaty of Tlateloco)
China conducts its first nuclear explosive test at Lop Nor, Xinjiang 1964  
  1963 On 5 August, the Partial Test Ban Treaty (PTBT) banning nuclear explosions in the atmosphere, outer space and underwater, but not underground, is signed by the United Kingdom, the Soviet Union and the United States
France conducts its first nuclear explosive test near Reggane in the Sahara Desert 1960  
  1959 Antarctic Treaty, providing for the demilitarisation and denuclearisation of the Antarctic continent
The United Kingdom conducts its first nuclear explosive test at the Monte Bello Islands off the Australian coast 1952  
The Soviet Union conducts its first nuclear explosive test near Semipalatinsk in Kazakhstan 1949  

On 16 July, the United States conducts the first nuclear explosive test at Alamogordo, New Mexico.

In August, two atom bombs are exploded over Hiroshima and Nagasaki, Japan.

1945