Announced United States Nuclear Tests -- By Event __ Event Name. Date (GCT) Location Type “” Purpose... : Yield Range. -- Calabash 10/29/69 NTS Shaft WeaponsRelated 110 kt Calamity Operation Dominic 10/27/62 Johnston fsiand area Airdrop WeaponsRelated Intermediate Cambric 05/14/65 NTS Shaft WeaponsRelated 0.75 kt Camembert 06/26/75 NTS Shaft WeaponsRelated 200 to 1000 kt Camphor Accidental release of radioactivity detected onsite only 06/29/71 NTS Tunnel WeaponsEffects Less than 20 kt Campos 02/13/78 NTS Shaft WeaponsRelated Less than 20 kt Can 04/21/70 NTS Shaft WeaponsRelated 20 to 200 kt Canfield 05/02/80 NTS Shaft WeaponsRelated Less than 20 kt Cannikin Test of warhead of Spartan missile 11/06/71 Amchitka Shaft WeaponsRelated Less than 5 MT Canvasback 08/22/64 NTS Shaft Weapons Related Less than 20 kt Caprock 05/31/84 NTS Shaft WeaponsRelated 20 to 150 kt Carmel 02/21/63 NTS Shaft WeaponsRelated Low Carpetbag 12/17/70 NTS Shaft WeaponsRelated 220 kt Cashmere 02704/65 NTS Shaft WeaponsRelated Less than 20 kt Casselman 02/08/63 NTS Shaft WeaponsRelated Low Cathay 10/08/71 NTS Shaft WeaponsRelated Less than 20 kt Catron 10/24/58 NTS Tower Safety Experiment 21 tons Cedar 07/02/58 Bikini Barge WeaponsRelated Centaur 08/27/65 NTS Shaft WeaponsRelated Less than 20 kt 10/26/58 NTS Tower Safety Experiment 0.? tons Accidental release of radioactivity detected onsite only Ceres Radioactivity not detected off site -63-