Cool web application. Using GIS technology, these guys allow you to see what the blast radius of a 10-kiloton nuclear weapon would be on your own city or town. (Recommended, unfortunately, that you use MS Explorer. Firefox didn’t work so well)
Enter your zip code and a map comes up pretty quickly. It centers the circles on the centroid of the zip code zone, so the center might not be your house. But it’s one of those handy things about nuclear bombs that you don’t have to be right next to your target to destroy it (hence the old adage that close only counts in horseshoes, hand grenades and nuclear war).