Abstract
Nuclear facilities have been constructed in the Wakasa bay area where active faults are recognized with the highest density in Japan. The evaluations of active faults in the vicinity of nuclear facilities are clearly mistaken. The degree of ground motion has been under-estimated, and, damage that can result from dislocation along active faults has been ignored, due to erroneous assessments. The severe accident of the "Fukushima" was caused by intentional human carelessness. It is extremely important to find out the responsibility for the past inaccurate examinations to ensure the safety of nuclear facilities. Essential issues remain to be re-examined before giving the green light to the restart of reactors.
