Japan's Hiroshima Nuclear detonation was at 580 meters. It was a 12 megaton bomb. Relatively small. My recall on the population numbers was way off.
Maximum temperature at burst point: several million degrees centigrade. A fireball of 15-meters radius formed in 0.1 millisecond, with a temperature of 300,000 degrees centigrade, and expanded to its huge maximum size in one second. The top of the atomic cloud reached an altitude of 17,000 meters.
Deaths. With an uncertain population figure, the death toll could only be estimated. According to data submitted to the United Nations by Hiroshima City in 1976, the death count reached 140,000 (plus or minus 10,000) by the end of December, 1945. Persons qualifying for treatment under the A-bomb Victims Medical Care law of 1957 received Health Cards; holders as of March 31, 1990, numbered 352,550.
http://mothra.rerf.or.jp/ENG/A-bomb/History/Damages.html
Current bombs exceed 12 megaton by a bunch. A Chicago blast of this newer type of bomb would kill from fallout people in Indy. An indy blast could easily kill over a million people.
Maximum temperature at burst point: several million degrees centigrade. A fireball of 15-meters radius formed in 0.1 millisecond, with a temperature of 300,000 degrees centigrade, and expanded to its huge maximum size in one second. The top of the atomic cloud reached an altitude of 17,000 meters.
Deaths. With an uncertain population figure, the death toll could only be estimated. According to data submitted to the United Nations by Hiroshima City in 1976, the death count reached 140,000 (plus or minus 10,000) by the end of December, 1945. Persons qualifying for treatment under the A-bomb Victims Medical Care law of 1957 received Health Cards; holders as of March 31, 1990, numbered 352,550.
http://mothra.rerf.or.jp/ENG/A-bomb/History/Damages.html
Current bombs exceed 12 megaton by a bunch. A Chicago blast of this newer type of bomb would kill from fallout people in Indy. An indy blast could easily kill over a million people.