A nuclear\atomic holocaust or nuclear apocalypse

The term
The English word "holocaust", derived from the Greek term "holokaustos" meaning "completely burnt", is commonly defined as "a great destruction resulting in the extensive loss of life, especially by fire."

Also see

 * Atomic War
 * Three Mile Island accident
 * 1968 Thule Air Base B-52 crash
 * 1963 Test Ban Treaty
 * Atomic warfare information notes.

Outside links

 * http://www.thefreedictionary.com/holocaust American Heritage Dictionary definition of "holocaust"