Nuclear explosions by country

You may know which countries have nuclear weapons, but can you name the countries where nuclear explosions have occurred?
Answers are nuclear explosions from nuclear weapons, tests or otherwise, i.e. not nuclear power plant accidents etc.
Some answers are countries that were part of the Soviet Union.
Quiz by HelveticaBold
Last updated: July 25, 2016
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First submittedJuly 25, 2016
Times taken55
Average score40.0%
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The first ever nuclear explosion, Trinity, took place in this US state
New Mexico
The USA has conducted most of its nuclear tests in this state
This country experienced two nuclear explosions, but not as tests
France has tested nuclear bombs in their Polynesian territories and also this country
Many nuclear tests have been carried out in this country, including the world's first Hydrogen bomb test called Ivy Mike
Marshall Islands
The USSR tested its first nuclear bomb, First Lightning, in this country
The world's deepest nuclear explosion occurred at - 2,440 m in this country in 1968
Until it was beaten by this nuclear explosion at - 2,483 m in this country in 1972
The largest ever nuclear explosion called Tsar Bomba took place in this country
More specifically this island region
Novaya Zemlya
The USSR also conducted some small underground tests in this country
Smiling Buddha was the first nuclear explosion carried out by this country
Most of the United Kingdom's nuclear tests including its first, Operation Hurricane, were conducted in this country
Other British bombs have been tested in the USA and also this country
This country has tested 45 nuclear bombs in Lop Nur, which used to be a salt lake but dried up after the explosions
This country has tested nuclear weapons in the huge and largely desolate Chagai District
Seismic reports have shown this country has detonated nuclear bombs on its own soil, but not ones large enough to be H-bombs, as it claims to have done
North Korea
This country assembled six nuclear weapons and prepared to test them, but never did and abandoned their nuclear programme
South Africa
A disputed theory suggests that this country worked with the above country and conducted a nuclear explosion off the Prince Edward Islands
Thanks to a plane accident, an unexploded nuclear bomb still sits off the coast of Tybee Island in this US state
Level 75
Jul 25, 2016
Tsar Bomba detonation didn't take place in Russia, but in Soviet Union.
Level 71
Jul 25, 2016
Quite right, just like some more of the answers like I pointed out, but I'm looking for specific countries that are around today.