On March 1, 1954, Castle Bravo Explodes with 2.5 more force than expected, generating 15 MT of energy and irradiating Bikini Atoll with dangerous levels of fallout : r/shockwaveporn
Castle Bravo - Wikipedia
Castle Bravo - Nuclear Museum
On March 1, 1954, the Castle Bravo hydrogen bomb test was conducted at Bikini Atoll. The explosion yield of 15 Megatonnes of Tnt making it the most powerful nuclear weapon detonated by