This map courtesy of Kenn Sakurai at Facebook. Fukushima, the prefecture with the troubled reactors has been circled in red. The Kanto megalopolis is south of there. Major quake and tsunami damage starts in Chiba, on the coast and goes northward, taking in coastal, estuarine and even diluvial (up river) Ibaraki, Tochigi, Fukushima, Miyagi, Iwate, Aomori, as well as coastal SE Hokkaido. Japan HEO is in Fukui, south of Niigata, on the Japan Sea side of Honshu (the other side of Honshu). Radioactivity is polluting the agriculture and waters of Fukushima and surrounding prefectures. It is also drifting south into the Kanto area.