Assessing the impact of a nuclear bomb on Coventry

What would happen if a nuclear bomb hit Coventry? The city centre would be turned into a 300m wide and 200m deep crater, BY JAMES RODGER, 23 Apr 17, Hundreds of thousands of people would be killed if a nuclear blast hit Coventry and Warwickshire.

Imagining the bomb went off at ground level in Broadgate, the city centre would be turned into a 300m wide and 200m deep crater, according to interactive data site Nukemap.

The map below shows the impact of a nuclear explosion in Coventry.

Fireball radius (orange)

Fatal levels of radiation would increase greatly if the nuke exploded at ground level.

The fireball radius (orange) would see the entire city centre including monuments such as the Cathedral, Broadgate and West Orchards Shopping Centre consumed by a nuclear fireball 3.2km wide.

This would stretch as far as the Ricoh Arena at one end, and Finham at the other.

The fatality rate is 100 per cent.

  • Crater inside radius: 150 m (0.07 km²)
  • Crater lip radius: 300 m (0.28 km²)
  • Fireball radius: 0.71 km (1.56 km²)
  • Air blast radius (20 psi): 1.67 km (8.8 km²)
  • Radiation radius (500 rem): 2.26 km (16.1 km²)
  • Air blast radius (5 psi): 3.52 km (39 km²)
  • Thermal radiation radius (3rd degree burns): 8.95 km (251 km²)
  • Radiation radius (green)

    Slightly wider than the fireball radius. Without medical treatment, expect between 50 per cent and 90 per cent mortality from acute effects alone. Dying takes between several hours and several weeks.

    Air blast radius (red – 20psi)

    The most intense air blast would have a radius of 4.75km and demolish heavily built concrete buildings in the University of Warwick campus, Binley Road, and Holbooks, among other areas. The fatality rate is still 100 per cent – or very close.

  • Air blast radius (grey – 5psi)

    A lesser air blast radius would still cause the collapse of all residential buildings within a 10km radius. That means houses would collapse all the way out in Fillongley, Bedworth, Kenilworth and Ryton.Injuries are universal and fatalities widespread.

  • Thermal radiation radius (lighter orange)

    The thermal radiation radius is 29.1km.  This would mean third degree burns “throughout the layers of the skin”, which could cause severe scarring, disablement and even amputation. This radius covers Nuneaton, Hinckley, Sutton Coldfield, parts of Birmingham and Leamington Spa.

  • The city would be dependent on outsiders and national agencies for help after the blast. In the fallout survivors would find dozens of hospitals and medical facilities would have been destroyed. A dozen fire stations would also have been wiped out.At the same moment around 200 schools and hundreds of churches, mosques, gurdwaras and temples could have been levelled or badly damaged.

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