Though this ring covers an additional 30 square miles, much of this area is over water or less densely populated areas. The affected population in this ring is estimated to be 500,000. There will be almost no fatalities in this ring and only a small percentage, roughly 30,000, will receive injuries from the thermal pulse. Flashblindness and permanent retinal injuries from the blast will extend out beyond 20 miles. Since this is a ground level explosion, the number of people who will be looking in the direction of the blast and have a clear view, will be much less than if the explosion had taken place several thousand feet above the city.