Sequence of evacuation orders based on the report by The National Diet of Japan Fukushima Nuclear Accident Independent Investigation Commission: 11 March 14:46 JST The earthquake occurred. 15:42 TEPCO made the first emergency report to the government. 19:03 The government announced nuclear emergency. 20:50 The Fukushima Prefecture Office ordered 2km radius evacuation. 21:23 The government ordered 3km evacuation and to keep staying inside buildings in the area of 3-10km radius. 12 March 05:44 The government ordered 10km radius evacuation. 18:25 The government ordered 20km evacuation. 15 March 11:01 The government ordered to keep staying inside buildings in the area of 20-30km from the plant.
25 March The government requested voluntary evacuation in the area of 20-30km. 21 April The government set the 20km radius no-go area.