How many people suvived the Nagasaki Bombing?

Answer 1

When you study incidents like this one, your mostly get the down number as it is less hard when we deal with a high population. A survival number would be less accurate than the down number in this case. There were some 280,959 in Hiroshima and 158,754 in Nagasaki recorded as casualties from the nuclear attacks.

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Chaotic conditions made accurate accounts most difficult. Some victims were vaporized instantly, many survivors were horribly disfigured, and death from radiation was uncertain-it might not claim its victims for days, weeks, months, or even years.

The initial death count in Hiroshima, set at 42,000-93,000, was based solely on the disposal of bodies, and was thus much too low. Later surveys covered body counts, missing persons, and neighborhood surveys during the first months after the bombing, yielding a more reliable estimate of 130,000 dead as of November 1945. A similar survey by officials in Nagasaki set its death toll at 60,000-70,000. (Its plutonium bomb was more powerful, but its destructive range was limited by surrounding hills and mountains).

Additional counts indicated high levels of short-term mortality in both cities:

-Over 90% of persons within 500 meters (1,600 ft.) of ground zero in both cities died.

-At 1.5 km (almost one mile), over 2/3 were casualties, and 1/3 died.

-Of those at a distance of 2 km (1.2 mi.), half were casualties, 10% of whom died.

-Casualties dropped to 10% at distances over 4 km (2.4 mi.).

Most persons close to ground zero who received high radiation dosages died immediately or during the first day. One-third of all fatalities occurred by the 4th day; two-thirds by the 10th day; and 90% by the end of three weeks.

While casualty rates exceeded death rates, they both were highest near ground zero and declined at similar rates by increasing distance from ground zero. But the cumulative death rates (%) in both cities rose dramatically during the first two weeks, and then leveled off in subsequent weeks.

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