San Francisco Example: 38 seconds after detonation
This band extends out for almost 9 miles and has an overpressure of 1 psi at its outside edge. At the inner edge there will be light to moderate amounts of damage to unreinforced buildings of brick and wood. Reinforced structures and commercial buildings will receive light damage at most. This band extends out to cover the rest of San Francisco as well as Sausalito and parts of Oakland.
Though this ring covers an additional 140 square miles, much of this area is over water. The affected population in this ring is estimated to be 500,000. There will be almost no fatalities in this ring and roughly 30,000 injuries.