Bunker-busting nuclear weapons, also known as earth-penetrating weapons (EPW), are a type of nuclear weapon necessarily come into contact with large amounts of earth-based debris, they may, under certain circumstances, still generate fallout.
Bunker-busting nuclear weapons, also known as earth-penetrating weapons (EPW), are a type of nuclear weapon designed to penetrate into soil, rock, or concrete to deliver a nuclear warhead to a target. However because such weapons necessarily come into contact with large amounts of earth-based debris, they may, under certain circumstances, still generate fallout.