August 21st 2019
The government’s earthquake research headquarters has redesigned the national earthquake prediction map in attempt to make it easier for people with color blindness; a condition that affects approximately three million people in Japan, to understand.
The Japan Meteorological Agency has already adopted a similar approach for post-disaster information, but the earthquake headquarters intends to gradually promote “color barrier-free” with information related to disaster prevention.
The earthquake headquarters will stop using “green” to avoid the mixture of green and red, which are difficult for color blind people to distinguish, and select from nine colors that are easy to distinguish.
Predictive maps are the basis of national and local government disaster prevention plans and some say that it should be applied not only to earthquakes but also to natural disasters such as typhoons and volcanic eruptions.
The highest risk is shown in magenta and the lowest is light gray. Do not use green or black. The land and sea use white or light blue. For example, it is confusing if there is a color like a mixture of red and magenta.