NukeSimulation.com

City scenario

Singapore nuclear blast radius

Last updated

Singapore is a small island state with a very dense downtown. A 15 kt airburst over the core is large compared with the civic district and small compared with the whole island.

Open Singapore in the 3D simulator

Educational estimate only. Blast and heat rings use simplified yield scaling. They ignore terrain, weather, shielding, and weapon design. Casualty counts use WorldPop 2020 residents on an approximately 1 km grid and ignore time of day, commuting, shelter, and evacuation. This is not a targeting or civil-defense tool. About the model.

Aim point: Downtown Core / Singapore River · Weapon: Little Boy (15 kt, 543 m (1,780 ft) optimum airburst)

Ground ranges for Little Boy (15 kt, 543 m (1,780 ft) optimum airburst) in this simulator.
Effect Ground range What the model means
Fireball 266 m (872 ft) Maximum luminous radius
20 psi 839 m (2,751 ft) Heavy destruction
5 psi 1.8 km (1.1 mi) Most buildings collapse
Thermal 2.0 km (1.3 mi) 3rd-degree burns
1 psi 4.2 km (2.6 mi) Windows shatter
Rings scaled to 1 psi. Yellow fireball, red 20 psi, orange 5 psi, gold thermal, blue 1 psi. Not a map of buildings.

Casualty estimate at this pin

People on the WorldPop 2020 grid inside this scenario’s 1 psi ring. Rounded educational estimate, not a forecast.
Estimated deaths 26,896
Estimated injuries 76,802
Residents inside 1 psi 278,282

What the rings cover

Inner rings sit on the Downtown Core and neighbouring civic blocks. 5 psi covers a portion of the central area. 1 psi reaches across a slice of the island and leaves most residential new towns outside window-breakage.

The preset aims at the downtown and river core, not at Changi or a reservoir. That is the populated grid a visitor means by ‘Singapore’ in a nuke simulator.

Because the island is only about 50 km across, people overestimate how much of the country a Hiroshima-scale burst covers. The 1 psi ring here is still a local disk, not a nationwide event, in this model.

The casualty line will look high relative to land area because the core is stacked with residents on the WorldPop grid. It still ignores shelters, MRT commuting, and building type.

Related pages

Hong Kong · Manila · Tokyo · Shanghai

All cities and sites

City index · Historic sites · Weapon yields

Open the simulator · How the numbers work · FAQ · Privacy · Terms · support@nukesimulation.com