Upshot-Knothole Grable

Name: Upshot-Knothole Grable
Start: 1953

1953 CE.

Shown on the map at 36.793°, -115.915°.

Upshot–Knothole Grable was a nuclear weapons test conducted by the United States as part of Operation Upshot–Knothole. Detonation of the nuclear weapon, a W9 warhead, occurred 19 seconds after its deployment at 8:30am PDT (1530 UTC) on May 25, 1953, in Area 5 of the Nevada Test Site.

Text from the Wikipedia article Upshot–Knothole Grable, licensed CC BY-SA 4.0.

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Upshot-Knothole Grable

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