The extremely high yields of the Castle weapons caused concern within the AEC that potential damage to the limited infrastructure already established at Enewetak would delay other operations . Additionally , the cratering from the '' Castle '' weapons was expected to be comparable to that of '' Ivy Mike '' , a 10.4 megatons of TNT ( Mt ) device tested at Enawetak in 1952 leaving a crater approximately in diameter marking the location of the obliterated test island Elugelab
Ivy Mike
Ivy Mike
Operation Castle