Announced United States Nuclear Tests -- By Event Event Name... - - Date (GCT) Location Type Purpose.. ae Blanca Slight venting 10/30/58 NTS Tunnel WeaponsRelated 22 kt Blenton 04/30/69 NTS Shaft WeaponsRelated 20 to 200 kt Bluegill 3 Prime DoD Event--Operation Fishbowl High altitude--tens of kilometers 10/26/62 Johnston Istand area Rocket Weapons Effects Submegaton Bluestone 06/30/62 Christmas island Airdrop WeaponsRelated Low Megaton Bobac 08/24/62 NTS Shaft WeaponsRelated Low Bobstay 10/26/77 NTS Shaft WeaponsRelated Less than 20 kt Bodie 12/13/86 NTS Shaft Weapons Related 20 to 150 kt Boitzmann 05/28/57 NTS Tower Weapons Related 12 kt Bonarda 09/25/80 NTS Shaft WeaponsRelated 20 to 150 kt Boomer Accidental release of radioactivity detected on site only 10/01/61 NTS Shaft WeaponsRelated Low Borate 10/23/87 NTS Shaft WeaponsRelated 20 to 150 kt Bordeaux 08/18/67 NTS Shaft WeaponsRelated Less than 20 kt Borrego 09/29/82 NTS Shaft Weapons Related Less than 150 kt Bourbon 01/20/67 NTS Shaft Weapons Related 20 to 200 kt Bouschet 05/07/82 NTS Shaft WeaponsRelated 20 to 150 kt Boxcar 04/26/68 NTS Shaft WeaponsRelated 1.3 MT Bravo 02/28/54 Bikini Surface WeaponsRelated 15 MT Accidental release of radioactivity detected onsite only Operation Dominic Experimental thermonuclear device area -61- aa -: Yield Range s