Detoit Example: 29 seconds after detonation
In the outermost band (4.7 miles, 1 psi) there would be only light damage to commercial structures and moderate damage to residences.
Casualties are estimated at 25% injured and only a small number killed. Under the range of conditions, there will be an additional 3,000 to 75,000 burn injuries requiring specialized medical care.
Fire ignitions should be comparatively rare (limited to kindling materials such as newspaper or dry leaves) and easily controlled by the survivors.