American forces dropped an atomic bomb on the Japanese port city of Nagasaki just before noon on August 9, 1945. This was the second use of the atomic bomb in World War II. The first atom bomb to be used in wartime had been dropped on Hiroshima just three days before. These two events are the only use of nuclear weapons in war to date.
In Nagasaki, the bomb exploded about 1,625 ft above an industrial area. About 30% of Nagasaki, including almost all the industrial district, was destroyed by the bomb and nearly 74,000 people were killed and a similar number injured. On August 15, six days after the bombing of Nagasaki, Japan announced its surrender to the Allies, officially ending World War II.
The anniversaries of the two bombings hold particular significance for Japan following last year’s accident at the Fukushima nuclear power plant. The disaster that followed a massive earthquake and tsunami has unleashed a growing wave of anti-nuclear sentiment in the country.
Nagasaki Peace Park is a park located in Nagasaki, Japan, commemorating the atomic bombing of the city during World War II. It is located at the epicenter of the 1945 blast, next to the Atomic Bomb Museum and near the Peace Memorial Hall.
Visit the Exploratorium online exhibit Remembering Nagasaki for photos and descriptions of the city just after the atomic bombing. See also a Kids Page (in English) about the atomic bombing and Nagasaki.