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Nagasaki Nuclear Expoision

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Nagasaki Nuclear Expoision

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(Compiled by Nagasaki Municipality|
Destruction of Buildings and Houses | Number | Percentage| Total in Nagasaki (before atomic explosion) | 50,000| 100.0| Blasted (not burned) | 2,652| 5.3|
Blasted and burned | 11,494| 23.0|
Blasted and/or burned | 14,146| 28.3|
Partially burned or blasted | 5,441| 10.9|
Total buildings and houses destroyed | 19,587| 39.2|
Undamaged | 30,413| 60.8|
TABLE A
Estimates of Casualties
| Hiroshima | Nagasaki |
Pre-raid population | 255,000 | 195,000 |
Dead| 66,000| 39,000 |
Injured | 69,000| 25,000|
Total Casualties | 135,000 | 64,000|
The relation of total casualties to distance from X, the center of damage and point directly under the air-burst explosion of the bomb, is of great importance in evaluating the casualty-producing effect of the bombs. This relationship for the total population of Nagasaki is shown in the table below, based on the first-obtained casualty figures of the District: TABLE B

Relation of Total Casualties to Distance from X
Distance
from X feet | Killed| Injured| Missing| Total
Casualties| Killed per
square mile |
0 - 1,640 | 7,505| 960| 1,127 | 9,592| 24,7OO|
1,640-3,300 | 3,688| 1,478| 1,799 | 6,965| 4,040|
3,300-4,900 | 8,678| 17,137| 3,597 | 29,412| 5,710|
4,900 - 6,550 | 221| 11,958| 28 | 12,207| 125|
6,550 - 9,850 | 112| 9,460| 17 | 9,589| 20|
No figure for total pre-raid population at these different distances were available. Such figures would be necessary in order to compute per cent mortality. A calculation made by the British Mission to Japan and based on a preliminary analysis of the study of the Joint Medical-Atomic Bomb Investigating Commission gives the following calculated values for per cent mortality at increasing distances from X: TABLE C

Per-Cent Mortality at Various Distances
Distance from X, in feet| Per-cent Mortality |
0 - 1000 | 93.0%|
1000 - 2000 | 92.0...

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