[H-CG27] Nuclear Power and Geoscience in Japan: 10 years after the 3.11 complex disaster

[HCG27-P01] Nuclear Power and Geoscience in Japan

*Daisuke Suetsugu¹, Satoshi Kaneshima², Takeshi Sagiya⁴, Kohta Juraku³ (1.institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology, 2.Department of Earth and Planetary Sciences, Kyushu University, 3.Department of Humanities, Social and Health Sciences, School of Engineering, Tokyo Denki University, 4.Disaster Mitigation Research Center, Nagoya University)

Keywords:Nuclear power plants, Geoscience

Severe accident of the Fukushima-Daiichi nuclear power plant was caused by the 2011 Great East Japan earthquake and tsunami. Looking at the seriousness and broad extent of the accident, many geoscientists, including the authors, realized ourselves as those who have to consider the risk of nuclear power plants seriously, which motivated us to organize sessions in the JpGU meeting on the risk of nuclear power utilization in Japan mainly from the point of view of geoscience since 2013. It has shed new light on various aspects of the risk of nuclear power related to earthquakes, volcanic activities and tsunamis. The 2021 JpGU meeting will be held 10 years after the 3.11 complex disaster: the Great East Japan Earthquake with the Fukushima-Daiichi nuclear accident. On this occasion, we review what we have discussed and understood through the past sessions or public debates: What should geoscience bear geoscience hazard and risk of nuclear power plants to engineers, policy-makers, and Japanese people, with an emphasis on inevitably great uncertainty? Issues of the nuclear power plants in Japan are not only geoscientific risk, but including energy balance, economics and environment problems. How can we create a ‘public space’ consisting of all the stake-holders to discuss future of the nuclear power in Japan?