MYSTERY WIRE — The United States has officially conducted 1,054 nuclear tests, many of them at the Nevada National Security Site (NNSS) and others at Bikini Atoll, Enewetak Atoll, Christmas Island, and other Pacific Ocean locations.
The testing began July 16, 1945 with Trinity near Alamogordo, New Mexico and continued until September 23, 1992 with Divider, part of Operation Julin.
On this day, June 24, four tests were conducted.
June 24, 1957
Operation Plumbbob – Priscilla
NNSS
Balloon
37 kt

June 24, 1971
Operation Emery – Harebell
NNSS
Underground – this was the fourth test for Operation Emery
38 kt
June 24, 1980
Operation Tinderbox – Huron King
NNSS
Underground
Radiation and EMP effects shot through a mockup DSCS satellite on the surface, which was then towed off the collapsing cap. Picture of the test chamber is below. It is still on the NE lip of the test’s crater.
6 kt

June 14, 1982
Operation Praetorian – Nebbiolo
NNSS
Underground
140 kt