Fact Check: Hiroshima and Nagasaki bombings killed tens of thousands instantly.

Fact Check: Hiroshima and Nagasaki bombings killed tens of thousands instantly.

Published June 25, 2025
by TruthOrFake AI
VERDICT
True

# Fact Check: "Hiroshima and Nagasaki bombings killed tens of thousands instantly." ## What We Know The atomic bombings of Hiroshima and Nagasaki dur...

Fact Check: "Hiroshima and Nagasaki bombings killed tens of thousands instantly."

What We Know

The atomic bombings of Hiroshima and Nagasaki during World War II resulted in significant immediate casualties. On August 6, 1945, the U.S. dropped the atomic bomb "Little Boy" on Hiroshima, killing approximately 70,000 people instantly at the moment of detonation. The bomb exploded at 8:15 a.m. local time, and those closest to the blast were killed instantly, with many more suffering severe injuries from the explosion and subsequent firestorm.

Three days later, on August 9, 1945, the bomb "Fat Man" was dropped on Nagasaki, resulting in the immediate deaths of an estimated 35,000 to 40,000 people. The total immediate death toll from both bombings is thus estimated to be around 105,000 to 110,000 people, with additional deaths occurring in the following days and months due to injuries and radiation exposure.

Analysis

The claim that "Hiroshima and Nagasaki bombings killed tens of thousands instantly" is supported by multiple credible sources. The National Park Service notes that the blast wave from the Hiroshima bombing killed around 80,000 people instantly, while the Atomic Bombings of Hiroshima and Nagasaki article on Wikipedia corroborates this figure, stating that the total death toll from both bombings could reach between 150,000 and 246,000 when considering long-term effects.

The reliability of these sources is generally high. The National Park Service is a government entity that provides well-researched historical information, while Wikipedia, despite its collaborative nature, cites numerous academic and historical references that can be verified. The Harry S. Truman Library also provides an official account of the bombings, reinforcing the immediate death counts reported.

However, it is important to note that the exact number of casualties is difficult to determine due to the chaos following the bombings and the long-term effects of radiation exposure. Estimates vary, and some sources suggest that the total number of deaths from the bombings, including those who died later from radiation sickness, could exceed 200,000 by the end of 1945 (source-2).

Conclusion

Verdict: True
The claim that "Hiroshima and Nagasaki bombings killed tens of thousands instantly" is accurate based on credible historical evidence. The immediate death toll from the bombings is estimated to be between 105,000 and 110,000, with thousands more dying in the aftermath due to injuries and radiation effects. The figures are supported by multiple reliable sources, including government archives and historical analyses.

Sources

  1. The Atomic Bombing of Hiroshima and Nagasaki
  2. Manhattan Project: The Atomic Bombing of Hiroshima, August 6, 1945
  3. The Atomic Bombings of Hiroshima and Nagasaki
  4. Decision to Drop the Atomic Bomb | Harry S. Truman
  5. Atomic bombings of Hiroshima and Nagasaki
  6. Counting the dead at Hiroshima and Nagasaki
  7. How Many People Died in Hiroshima and Nagasaki? - Newsweek

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Fact Check: Hiroshima and Nagasaki bombings killed tens of thousands instantly. | TruthOrFake Blog