Red Circle: Intense heat from the explosion will likely cause widespread fires within this region.

Blue Circle: Most homes are completely destroyed and stronger commercial buildings will be severely damaged due to the high pressure blast wave in this region.

Yellow Circle: Moderate damage to buildings causing some risk to people due to flying debris is caused by the blast wave in this region.

For further information on modern nuclear weapons and nonproliferation with regards to present developments see "Nuclear Weapons in the 21st Century". To send your opinion on nuclear weapons to your representatives in Congress, see the Friends Committee on National Legislation site.