This is a map of the area affected by a 1 Megaton Surface Blast, should that bomb hit my office. Below you can find the information about the damage done in the center, and the damage expected at the edges of the radius measured in the map. Like I said, the center of the map is my office. My apartment building stands in the outer ring.

Radius: 1.7 miles
[Note: The outside edge of this shaded area represents the 12 psi ((pounds per square inch) ring. Blast pressure within the ring is greater than 12 psi; blast pressure outside the ring is less than 12 psi.]
At the center of the ring lies a crater 200 feet deep and 1000 feet in diameter. The rim of this crater is 1,000 feet wide and is composed of highly radioactive soil and debris. Nothing recognizable remains within about 3,200 feet (0.6 miles) from the center, except, perhaps, the remains of some buildings' foundations. At 1.7 miles, only some of the strongest buildings -- those made of reinforced, poured concrete -- are still standing. Ninety-eight percent of the population in this area are dead.

[....]

Radius: 7.4 miles
Residences are moderately damaged. Commercial buildings have sustained minimal damage. Twenty-five percent of the population between the 2 and 1 psi rings have been injured, mainly by flying glass and debris. Many others have been injured from thermal radiation -- the heat generated by the blast. The remaining seventy-five percent are unhurt.

Via Dave.