Nagasaki.

The actual collapse of buildings was observed at the extreme range of
23,000 feet from X in Nagasaki.

Although complete window damage was observed only up to 12,000 feet from X,
some window damage occurred in Nagasaki up to 40,000 feet, and actual
breakage of glass occured up to 60,000 feet.

Heavy fire damage was sustained in a circular area in Hiroshima with a mean
radius of about 6,000 feet and a maximum radius of about 11,000 feet;
similar heavy damage occured in Nagasaki south of X up to 10,000 feet,
where it was stopped on a river course.

In Hiroshima over 60,000 of 90,000 buildings were destroyed or severely
damaged by the atomic bomb; this figure represents over 67% of the city's
structures.

In Nagasaki 14,000 or 27% of 52,000 residences were completely destroyed
and 5,40O, or 10% were half destroyed. Only 12% remained undamaged. This
destruction was limited by the layout of the city. The following is a
summary of the damage to buildings in Nagasaki as determined from a ground
survey made by the Japanese:

Destruction of Buildings and Houses Number Percentage
(Compiled by Nagasaki Municipality)

Total in Nagasaki (before atomic explosion) 50,000 100.0
Blasted (not burned) 2,652 5.3
Blasted and burned 11,494 23.0