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
1994 Imam Reza shrine bomb explosion 1994 Imam Reza shrine bomb explosion A bomb explosion occurred at the shrine of Ali al-Ridha, the eighth Imam of Shia, on 20 June 1994 at 14:26 in a crowded prayer hall in Mashhad, Iran . To maximize the amount of the casualties, the explosion day was timed to be coincident with Ashura, one of the holiest days for Shia muslims, when hundreds of pilgrims had gathered to commemorate the death of their third Imam, Husayn ibn Ali. The attack left at least 25 dead and more than 70 (200, nearly 300 and over 200) injured. The bomb was equivalent