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Countries with Deaths from Nuclear and Radiation Incidents

Name these countries that had deaths from radioactive incidents and accidents. Source
Name the modern-day countries.
Radiation was present at, but maybe not the cause of, every death.
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interopia
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Last updated: December 7, 2025
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First submittedDecember 13, 2018
Times taken803
Average score50.0%
Rating4.80
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Date
Deaths
Details
Country
August 6, 1945
90,000-146,000
Nuclear bomb
Japan
August 9, 1945
39,000-80,000
Nuclear bomb
Japan
August 1945
1
Criticality accident
United States
May 1946
1
Criticality accident
United States
March 1, 1954
1
Nuclear bomb test
Marshall Islands
May 21, 1957
1
Criticality accident
Russia
September 29, 1957
200+
Nuclear waste accident
Russia
October 1957
33
Power plant fire
United Kingdom
February 10, 1958
3
Criticality accident
Russia
January 3, 1961
3
Power plant accident
United States
July 1961
8
Submarine accident
Atlantic Ocean
21 March-August 1962
4
Radiation accident
Mexico
July 23, 1964
1
Criticality accident
United States
May 1968
9
Submarine accident
Arctic Ocean
December 10, 1968
1
Criticality accident
Russia
1974-6
10
Radiotherapy accident
United States
January 5, 1976
2
Power plant accident
Slovakia
1980
7
Radiotherapy accident
United States
1980-9
6
Lost radiation source
Ukraine
October 5, 1982
5
Lost radiation source
Azerbaijan
March 1984
8
Lost radiation source
Morocco
August 1985
10
Submarine accident
Pacific Ocean
April 26, 1986
30-70
Power plant accident
Ukraine
October 1986
1
Submarine accident
Atlantic Ocean
September 1987
4+
Lost radiation source
Brazil
1989
1
Irradiation facility accident
El Salvador
1990
1
Irradiation facility accident
Israel
December 10-20, 1990
11
Radiotherapy accident
Spain
1991
1
Irradiation facility accident
Belarus
1992
3
Irradiation facility accident
China
1992
1
Radiological accident
United States
1994
1
Lost radiation source
Estonia
1996
3+
Research center accident
South Africa
August-December, 1996
13
Radiotherapy accident
Costa Rica
June 1997
1
Radiological accident
Russia
September 30, 1999
2
Power plant accident
Japan
January-February 2000
3
Radiological accident
Thailand
May 2000
2
Radiography accident
Egypt
August 2000-March 2001
17
Radiotherapy accident
Panama
August 9, 2004
4
Power plant accident
Japan
April 2010
1
Radiological accident
India
March 11, 2011
2+
Power plant accident
Japan
September 12, 2011
1
Power plant accident
France
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9 Comments
+1
Level 60
May 25, 2021
Great quiz, maybe a source?
+1
Level 90
May 26, 2021
The source was in the description rather than the caveats, so I think you missed it.
+4
Level 57
Jul 15, 2021
Maybe accept UK for United Kingdom? Almost missed it because of that
+1
Level 90
Jul 15, 2021
But then United Kingdom will be accepted if someone types Ukraine, which is especially relevant on a nuclear accident quiz.
+5
Level 92
Nov 19, 2021
So what. It's the site standard and anyone who is going to type Ukraine is also going to be aware of the UK's nuclear industry.
+1
Level 77
Feb 8, 2022
That's true. But "UK" is accepted as that countries name on every other quiz on this site. I was fully expecting the UK to be a correct answer here, but after typing "UK" I just gave a surprised shrugged and thought they must have a really good safety program, lol.
+1
Level 90
Feb 8, 2022
OK my beloved quiztakers. Your voice has been heard! I added the type-in. Also added a recent incident, but it didn't affect the answers.
+1
Level 91
Apr 23, 2023
You left out Georgia where there was one fatality in the Lia radiological incident of 2001.
+1
Level 90
Apr 23, 2023
Doesn't seem to be listed in the source.