This page shows a simulation of the B-83 (largest bomb in current US arsenal) (1.2 Mt) nuclear bomb (1200 kt) detonated over Moscow, Russia. 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.
A B83 over Moscow
The B83 is a gravity bomb carried by the B-2 and B-52, and at 1.2 megatons it is the most powerful weapon left in the US stockpile — about 80 Hiroshimas in a single casing. This scenario detonates one as an airburst over the centre of Moscow. On the map the fireball is about 2 km across; the zone of total destruction, roughly 3 km in radius, covers the Kremlin, Red Square, Kitay-gorod and most of what lies inside the Boulevard Ring.
The 5 psi ring, where brick and panel apartment blocks collapse, reaches about 7.4 km — well beyond the Garden Ring to Moscow City, Sokolniki, Luzhniki and the Three Stations square. Third-degree burns on exposed skin extend to roughly 13.5 km, past VDNKh, Sparrow Hills and Izmailovo, and the 1 psi ring of broken glass and light injuries, about 23 km in radius, runs beyond the MKAD ring road into Khimki, Mytishchi and Lyubertsy. More than ten million people live inside that outer circle.
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