This page shows a simulation of the "Castle Bravo" - largest US bomb tested (15 Mt) nuclear bomb (15000 kt) detonated over Leszno, województwo wielkopolskie, Polska. The map displays the estimated fireball, the zones of heavy, moderate and light blast damage, thermal radiation and ionizing radiation. Click «What does that mean?» for a detailed legend, or run your own detonation on the main page.