Apparently 19 000 died and 300k were cleared out of a 50k radius. The nuclear fallout seems to be unclear and immeasurable still. The real fallout seems to be an urban land clear and a massive infusion of money into new nuclear or new energy technology.
Is this just a huge swindle on the people of Japan? That island seems to be a favorite place for psyops (Nagasaki and Hiroshima to name two).

Nagasaki, Japan, before and after the atomic bombing of August 9, 1945. Adjusted version of File:Nagasaki 1945 – Before and after.jpg (rotation and scaling). Français : Nagasaki (Japon) avant et après le bombardement atomique du 09 aout 1945. Version ajustée de File:Nagasaki 1945 – Before and after.jpg (rotation et changement d’échelle). (Photo credit: Wikipedia)