Nagasaki Bombing: August 9, 1945

Before and after aerial images of Nagasaki following the atomic bombing
Image: The mushroom cloud from the atomic explosion over Nagasaki at 11:02 am, August 9, 1945 – Wikimedia Commons

Quick Facts

EventNagasaki Bombing
DateAugust 9, 1945
Time11:02 AM JST
LocationNagasaki, Japan
Bomb"Fat Man" – Plutonium implosion-type
Immediate Deaths~70,000
Total Death Toll~80,000–100,000 (including later radiation deaths)
SignificanceSecond and last use of nuclear weapons in war

Overview

On the morning of August 9, 1945, the United States dropped the plutonium-based “Fat Man” atomic bomb on the Japanese city of Nagasaki, three days after the bombing of Hiroshima. Originally targeted for Kokura, the mission was diverted to Nagasaki due to poor visibility over the primary target.

At exactly 11:02 AM, the bomb detonated over the Urakami Valley with an estimated yield of 21 kilotons of TNT. The explosion instantly destroyed much of the city, killing around 70,000 people. Thousands more would succumb in the following weeks and months due to burns, injuries, and radiation sickness.

Nagasaki’s hilly terrain limited the blast radius compared to Hiroshima, but the destruction was still catastrophic. Industrial areas, including the Mitsubishi shipyards and arms factories, were obliterated.

The bombing, combined with the earlier attack on Hiroshima, played a crucial role in Japan’s decision to surrender, leading to the end of World War II on August 15, 1945.

Conclusion

The Nagasaki bombing remains one of the most devastating moments in human history, a stark reminder of the destructive capacity of nuclear weapons. While it hastened the end of the Second World War, it also ignited decades of debate over the ethics and necessity of atomic warfare.

Today, Nagasaki stands as both a modern city and a symbol of peace, advocating for nuclear disarmament and remembrance of those lost.