RUMORED BUZZ ON UNDERWATER NUCLEAR TEST 'UMBRELLA' (1958)

The 1946 Baker test, just following the chimney had broken in the cloud, as well as crack experienced shaped within the water's floor The Baker nuclear test at Bikini Atoll in July 1946 was a shallow underwater explosion, Portion of Operation Crossroads. A 20 kiloton warhead was detonated in a very lagoon which was about 200 ft (sixty one m) deep