The largest nuclear weapon ever detonated, the Tsar Bomba, set off by the Soviet Union in 1961, produced an insane 50-megaton blast—about 3,333 times more powerful than the Little Boy bomb that leveled an entire city.

Which nuke was the biggest?

Tsar Bomba, (Russian: “King of Bombs”) , byname of RDS-220, also called Big Ivan, Soviet thermonuclear bomb that was detonated in a test over Novaya Zemlya island in the Arctic Ocean on October 30, 1961. The largest nuclear weapon ever set off, it produced the most powerful human-made explosion ever recorded.

Was Nagasaki or Hiroshima bigger?

With respect to Nagasaki, it is usually stated that there were approximately 33,000 civilian deaths, and 25,000 surviving injured. ... The plutonium-type bomb detonated over Nagasaki actually had a greater explosive power than that used on Hiroshima.