Nizhny Novgorod city centre sits 401.8 km from Kremlin, Moscow, the most plausible strategic target in the area (high targeting confidence). Modelled strike: 455 kt airburst.
Estimated survival chance at city centre: 99% · Estimated metro fatalities: 630.5K, injuries: 759.3K
What a strike on Kremlin, Moscow would mean
A 455 kt detonation produces a fireball 763 m across in radius. Reinforced concrete fails out to 2.6 km (20 psi). Most residential buildings collapse within 5.3 km (5 psi), and windows shatter dangerously out to 11.9 km (1 psi). Anyone in line of sight within 8.2 km suffers third-degree burns from the thermal pulse.
An airburst maximises blast damage but produces minimal local fallout, so for Nizhny Novgorod the dominant risks are blast and thermal effects rather than radiation.
Most plausible targets near Nizhny Novgorod
| Target | Type | Distance | Assumed yield | Confidence |
|---|---|---|---|---|
| Kremlin, Moscow | government | 402 km | 455 kt | high |
| Kozelsk ICBM base | military | 580 km | 800 kt | high |
| Plesetsk Cosmodrome | military | 759 km | 300 kt | high |
| St. Petersburg | city | 894 km | 455 kt | high |
| Kyiv government district | government | 1105 km | 300 kt | high |
Key blast radii (455 kt airburst)
| Effect | Radius | What happens |
|---|---|---|
| Fireball | 763 m | Complete vaporisation |
| 20 psi blast | 2.6 km | Hardened structures destroyed, ~100% fatalities |
| 5 psi blast | 5.3 km | Most buildings collapse, widespread fatalities |
| 3rd-degree burns | 8.2 km | Full-thickness burns to exposed skin |
| 500 rem radiation | 2.6 km | Lethal dose without medical care |
| 1 psi blast | 11.9 km | Window breakage, light damage, glass injuries |
How Nizhny Novgorod can prepare
With a population density of 3,300 people/km², Nizhny Novgorod's outcome would hinge on the first hour. The guidance is identical everywhere: get inside, stay inside, stay tuned. A basement or the core of a large concrete building cuts fallout exposure by a factor of 10 or more, and radiation decays fast — dose rates fall ~90% within the first 7 hours and ~99% within two days.
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