It detonated about 600 metres from the ground, with a force equivalent to 15,000 tonnes of TNT, and killed 140,000 people. | Smoke billows 20,000 feet (6,100 metres) after an atomic bomb codenamed "Little Boy" exploded after being dropped by a U.S. Army Air Force B-29 bomber named Enola Gay over Hiroshima, Japan August 6, 1945.
via REUTERS