alt Hacker News> three other major events
What is the measure of major? The INES scale? https://en.wikipedia.org/wiki/International_Nuclear_and_Radi...
> Sarov in 1997
One person died in the criticality accident in a weapons research lab.
> Mayak Production Association in 2017 ... it was a huge release
https://inis.iaea.org/records/ndb3s-s5507 "In some regions, over 100 mBq/m³ were measured as one-day means. Although resulting exposure was far below radiological concern"
> the Nyonoksa explosion
Nuclear powered cruise missile.
> we might as well count Hanaford