*: Announced United States Nuclear Tests -- By Event | Event Name._ Date (GCT) |... Location . Type =|... ... Purpose J. Yield Range... Divider Test to ensure the safety of U.S. deterrent forces 09/23/92 NTS Shaft Weapons Related Less than 20 kt Dixie 04/06/53 NTS Airdrop Weapons Related 11 kt Dog 04/07/51 Enewetak Tower WeaponsRelated Dog 11/01/51 NTS Airdrop WeaponsRelated 21 kt Dog 05/01/52 NTS Airdrop WeaponsRelated 19 kt Dogwood 07/05/58 Enewetak Barge WeaponsRelated Dolcetto 08/30/84 NTS Shaft WeaponsRelated Less than 20 kt Dona Ana 10/16/58 NTS Balloon WeaponsRelated 37 tons Door Mist DoD Event Accidental release of radioactivity 08/31/67 NTS Tunnel Weapons Effects Less than 20 kt Doppler 08/23/57 NTS Balloon Weapons Related 11 kt Dormouse 01/30/62 NTS Shaft Weapons Related Low Dormouse Prime 04/05/62 NTS Shaft WeaponsRelated 10.6 kt Dorsal Fin 02/29/68 NTS Tunnet Weapons Effects Less than 20 kt Double Play 06/15/66 NTS Tunnel Weapons Effects Less than 20 kt Double Tracks Operation Roller Coaster Pu dispersal Radioactivity detected off site 05/15/63 Bombing Range Surface Storage-Transp. Zero Dovekie 01/21/66 NTS Shaft Weapons Related Less than 20 kt Draughts 09/27/78 NTS Shaft WeaponsRelated 20 to 150 kt detected off site DoD Event DoD Event Accidental release of radioactivity detected off site -70-