<P> Due to crosswind , the bomb missed the aiming point , the Aioi Bridge , by approximately 800 ft ( 240 m ) and detonated directly over Shima Surgical Clinic . It released the equivalent energy of 16 kilotons of TNT ( 67 TJ ) , ± 2 kt . The weapon was considered very inefficient , with only 1.7 % of its material fissioning . The radius of total destruction was about 1 mile ( 1.6 km ) , with resulting fires across 4.4 square miles ( 11 km ) . </P>
<P> Due to crosswind , the bomb missed the aiming point , the Aioi Bridge , by approximately 800 ft ( 240 m ) and detonated directly over Shima Surgical Clinic . It released the equivalent energy of 16 kilotons of TNT ( 67 TJ ) , ± 2 kt . The weapon was considered very inefficient , with only 1.7 % of its material fissioning . The radius of total destruction was about 1 mile ( 1.6 km ) , with resulting fires across 4.4 square miles ( 11 km ) . </P>
where did the atomic bomb drop on hiroshima
where did the atomic bomb drop on hiroshima
directly over Shima Surgical Clinic
directly over Shima Surgical Clinic