than the immediate area is capable of caring for at once. More importantly, the area covered by total dose of 300 rads of fallout over the first 18 hours is quite large (almost 2000 square miles). People who don’t evacuate the area or seek shelter from the radiation in the early fallout will likely come down with radiation sickness. For the long term, the incidence of various forms of cancer will increase for the general population up to 50 miles distant from the blast. Utilities Most of San Francisco will be without utilities at least out to the 2 psi ring. However, most people will need to evacuate the area, at least