Amazing Stuff Top 10 Biggest Explosion Ever! Posted on January 20, 2016 Author admin_g19aqsp2 Comments Off on Top 10 Biggest Explosion Ever! #4. Castle Bravo (Château Bravo), March 1, 1954 Château Bravo, a dry fuel atomic hydrogen bomb, was the most effective atomic gadget ever exploded by the United States (15 megatons) Loading... Pages: 1 2 3 4 5 6 7 8 9 10