atomic-bombed area; bomb site
Refers specifically to locations that were targeted by atomic bombs, most commonly Hiroshima and Nagasaki. Often used in discussions of peace, nuclear disarmament, and war memory.
Hiroshima became the first atomic-bombed city in the world.
The reconstruction of the bombed areas took many years.
被災地 is a general term for disaster-stricken areas, not limited to atomic bombing.
Compound of 被爆 (hibaku, 'being bombed, especially atomic bombing') and 地 (chi, 'land, place').