Japan Geigermap :
日本語 | English
This map visualises crowd-sourced radiation geiger counter readings from across Japan. Click on the labels to get more information on the source of each reading.
The number of locations fluctuate due to the validity of the data feeds. There are approximately 185 feeds from the official Japanese government source MEXT and the rest are from other sources such as the Tokyo hackspace, universities,local councils and concerned individuals.