Japan map of Japan Radiation Maximum by Prefecture by Do,Ken,To,Fu - TargetMap
Less detail appears on top-level maps prepared by the apparent data source (SPEEDI):
Disaster Prevention and Nuclear Safety Network for Nuclear Environment/ English Top Page
- http://www.bousai.ne.jp/vis/index.php (Japanese)
- Miyagi: 調整中
- Fukushima: 調整中
- Ibaraki: http://www.bousai.ne.jp/vis/jichitai/ibaraki/
- The nearest points to central Tokyo that appear to have data now are to the south, in Kawazaki-ku, south of the Tama River.