Nuclear explosion debris. The first man made nuclear explosion occurred on July 16, 1945 at 5:50 am on the Trinity Test Site near Alamogordo, New Mexico in the United States, an area now known as the White Sands Missile Range. The event involved the full-scale testing of an implosion-type fission atomic bomb. In a memorandum to the U.S. Secretary of War, General Leslie Groves describes the yield as equivalent to 15,000 to 20,000 tons of TNT. Following this test, a uranium-gun type nuclear bomb (Little Boy) was dropped on the Japanese city of Hiroshima on August 6, 1945, with a blast yield
Oaks explosion which usually carried six. At the inquest Hague described it: "I found the air turned upon us, and we 'revolted' again. That is, we were sucked backwards and forwards in consequence of the explosion. I knew this, for I am one of the survivors of the explosion twenty years ago." Minto descended to find out what was happening. He asked Tewart where Jeffcock and Smith were and after a brief search spent five minutes talking with Tewart, Baker and Siddons. He regained the surface at ten to nine. Jeffcock had earlier sent word that he thought the mine was heating