Kinshasa city centre sits 1796.7 km from Lagos, the most plausible strategic target in the area (low targeting confidence). Modelled strike: 100 kt airburst.
Estimated survival chance at city centre: 99% · Estimated metro fatalities: 282.9K, injuries: 340.7K
What a strike on Lagos would mean
A 100 kt detonation produces a fireball 416 m across in radius. Reinforced concrete fails out to 1.6 km (20 psi). Most residential buildings collapse within 3.2 km (5 psi), and windows shatter dangerously out to 7.2 km (1 psi). Anyone in line of sight within 4.4 km suffers third-degree burns from the thermal pulse.
An airburst maximises blast damage but produces minimal local fallout, so for Kinshasa the dominant risks are blast and thermal effects rather than radiation.
Most plausible targets near Kinshasa
| Target | Type | Distance | Assumed yield | Confidence |
|---|---|---|---|---|
| Lagos | city | 1797 km | 100 kt | low |
| Nairobi | city | 2419 km | 100 kt | low |
| Johannesburg | city | 2776 km | 100 kt | low |
| Cairo | city | 4195 km | 150 kt | low |
| Dimona Nuclear Research, Israel | energy | 4471 km | 150 kt | high |
Key blast radii (100 kt airburst)
| Effect | Radius | What happens |
|---|---|---|
| Fireball | 416 m | Complete vaporisation |
| 20 psi blast | 1.6 km | Hardened structures destroyed, ~100% fatalities |
| 5 psi blast | 3.2 km | Most buildings collapse, widespread fatalities |
| 3rd-degree burns | 4.4 km | Full-thickness burns to exposed skin |
| 500 rem radiation | 1.9 km | Lethal dose without medical care |
| 1 psi blast | 7.2 km | Window breakage, light damage, glass injuries |
How Kinshasa can prepare
With a population density of 9,400 people/km², Kinshasa'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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