Terrifying interactive map reveals millions of Londoners would die if a nuclear bomb was dropped on the UK

A new interactive map has shown the devastating effect a nuclear bomb blast could have on London. 

The tool highlights the extent of the fireball, radiation, shockwave, and heat produced by different nuclear weapons, and how they could impact any given area.

People can enter their postcode and learn about powerful nuclear blasts by bombs from the 15 KT ‘Little Boy’ dropped on Hiroshima to the USSR’s 50,000 KT Tsar Bomba.

The website from Outrider Foundation allows users to enter any location to find out the effects of a blast, including the number of possible fatalities and injuries.


In London, more than 4 million people would be killed in a nuclear explosion, it revealed.

The map breaks down the effects of the blast into fireball, radiation, shockwave, and heat (Outrider Foundation)

The tool asks users to choose between four different bombs: the 15KT ‘Little Boy,’ North Korea’s 150 KT Hwasong-14, the US’s 300KT W-87, and the 50,000 KT Tsar Bomba, the largest USSR bomb ever detonated.

It also allows people to choose whether the blast takes place at surface or air level.

At surface level bunkers below ground level would be affected and radiation fallout is greater, while an explosion in the air would affect a larger geographic area. 

If a Tsar Bomba were dropped on central London, the results would be catastrophic.

Intense heat from a blast would radiate from the capital across the south-east (Outrider Foundation)

According to the tool, the fireball would span 43.75 square miles and the radiation would spread 30.98 square miles, to Holloway, Brixton and Kensington.

More than 4.6 million people would die in the blast, while around 3 million would be injured, with the affected area stretching as fair as Luton and Royal Tunbridge Wells.

The tool estimates the blast would send shockwaves 345.05 square miles around the capital, with 3200 square miles of the south-east hit by intense heat from the explosion.

Within this radius wood, clothing paper and plastics would catch fire, the site claims. 

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The tool is based on Alex Wellerstein’s NUKEMAP, an historian of nuclear weapons and an Assistant Professor of Science and Technology Studies at the Stevens Institute of Technology, the team said. 

Data on blast size calculations and associated casualties is provided by Mr Wellerstein’s application.

In a statement, Outrider Foundation said: “Please note that these casualties numbers are not definitive, but meant to be evocative of the effects.”

NUKEMAP is a Google Maps tool that calculates the effects of the detonation of a nuclear bomb.

Source : https://www.standard.co.uk/news/london/terrifying-interactive-map-reveals-millions-of-londoners-would-die-if-a-nuclear-bomb-was-dropped-on-a3803036.html