This page shows a simulation of the 100000 kt nuclear bomb (100000 kt) detonated over Islamabad, Pakistan. 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.
100 megatons was the design yield of the Soviet AN602 — the Tsar Bomba — before its final stage was throttled back to 50 for the 1961 test. No weapon of this size was ever deployed: the bomb weighed 27 tonnes, no missile could lift it, and the arms race moved towards many smaller warheads instead. This scenario is therefore a physical ceiling, not a military one. The rings are enormous: a fireball about 12 km across, total destruction (20 psi) to roughly 13 km, collapse of houses (5 psi) to about 32 km, third-degree burns on exposed skin to about 75 km in clear weather, and broken windows (1 psi) out to about 100 km.
What that means in Islamabad
Centred on the Blue Area and the Parliament, the 13 km zone of total destruction covers the whole planned city, the Margalla foothills and most of Rawalpindi including the army's General Headquarters. The 32 km collapse ring takes in all of the twin cities' 3 million residents, the new international airport, Taxila, Wah Cantonment and Murree's approaches. Burns to 75 km reach Attock, Abbottabad, Murree, Jhelum's approaches and the Kahuta area; the 100 km ring of broken windows extends to Mansehra, Chakwal and the Indus at Attock. The Margalla Hills immediately north would cast a terrain shadow over the villages behind them. Islamabad is itself a nuclear-armed capital; see Nuclear arsenals.
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