What was the biggest nuclear bomb ever detonated?
The largest recorded nuclear bomb was detonated by USSR on 31st October 1961. It was estimated to be 58 megatons. In contrast, the largest detonation by the USA was 14.8 Megatons. It was detonated on 1st 1954, and was codenamed “Bravo”. The fallout was so great that even today the island where the test took place is still uninhabitable.