THE ULTIMATE GUIDE TO UNDERWATER NUCLEAR TEST 'UMBRELLA'

The 1946 Baker test, just following the chimney had damaged from the cloud, plus the crack had fashioned over the h2o's floor The Baker nuclear test at Bikini Atoll in July 1946 was a shallow underwater explosion, Section of Operation Crossroads. A 20 kiloton warhead was detonated inside a lagoon which was approximately two hundred ft (61 m) deep