Well since we're being pedantic, I didn't say anything about groundbursts. "Ground zero" in the context of Hiroshima refers to the hypocenter. > In the case o

Well since we're being pedantic, I didn't say anything about groundbursts. "Ground zero" in the context of Hiroshima refers to the hypocenter. > In the case of an explosion above the ground, ground zero is the point on the ground directly below the nuclear detonation and is sometimes called the hypocenter (from Greek ὑπο- "under-" and center). https://en.wikipedia.org/wiki/Ground_zero https://en.wikipedia.org/wiki/Ground_zero