‘Announced United States Nuclear Tests -- By Event Event Name - Date (GCT) |. ~~ Location Type Purpose”) Yield Ranges. Hod Accidental release of radioactivity detected on site only 05/01/70 NTS Shaft Weapons Related Less than 20 kt Hognose 03/15/62 NTS Shaft Weapons Related Low Holly 05/20/58 Enewetak Barge WeaponsRelated Hood 07/05/57 NTS Baltoon WeaponsRelated 74 kt Hook 04/14/64 NTS Shaft WeaponsRelated Less than 20 kt Hoosic 03/28/62 NTS Shaft WeaponsRelated 3.40 kt Hornet 03/12/55 NTS Tower WeaponsRelated 4kt Hornitos 10/31/89 NTS Shaft WeaponsRelated 20 ta 150 kt Hosta 02/12/82 NTS Shaft WeaponsRelated 20 to 150 kt Housatonic Operation Dominic 10/30/62 Johnston Island area Airdrop Weapons Related Megaton Range Houston 11/14/90 NTS Shaft Joint US-UK 20 to 150 kt How 06/05/52 NTS Tower WeaponsRelated 14 kt Hoya 09/14/91 NTS Shaft WeaponsRelated 20 to 150 kt Hudson 04/12/62 NTS Shaft Weapons Related Low Hudson Moon 05/26/70 NTS Tunnet WeaponsRelated Less than 20 kt Hudson Seal 09/24/68 NTS Tunnel WeaponsEffects Less than 20 kt Humboldt 10/29/58 NTS Tower WeaponsRelated 7.8 tons Accidental release of radioactivity detected on site only Treaty verification event DoD Event Accidental release of radioactivity detected on site only DoD Event -J7-