Figure 1. Location of Minamisoma City, Fukushima Prefecture, Japan and the detail of evacuation areas as of 22 April 2011. Minamisoma City, Fukushima Prefecture, Japan is located 13–38 km north of the Fukushima Daiichi nuclear power plant. The southern part of Minamisoma City was designated as an evacuation zone, the central part an emergency evacuation preparation zone, and the western part, a planned evacuation zone as of 22 April 2011.