*Masahiko Hayashi¹, Shin-Ichiro Higashino², Takuya Okada³, Shuji Nagasaki², Keiichi Ozuka⁴ (1.Faculty of Science, Fukuoka University, 2.Kyushu University, 3.Graduate School of Kyushu University, 4.Nippon Tungsten Co. Ltd.)

*Naoto Ishikawa¹, Ryokei Yoshimura², Tesfaye Kidane Birke³, Shin-ichiro Higashino⁴, Shin-ichi Kagashima⁵, Ameha A. Mulneh⁶, Kirika Kitagawa⁵, Nobutatsu Mochizuki¹², Masakazu Fujii⁷, Mamoru Kadoya¹¹, Mitsuhiro Iwamoto¹¹, Noriaki Obara⁹, Yo-ichiro Otofuji⁸, Minoru Funaki, Tetsu Kogiso¹⁰ (1.Faculty of Sustainable Design, Toyama University, 2.Disaster Prevention Research Institute, Kyoto University., 3.University of KwaZulu Natal, 4.Graduate School of Engineering, Kyushu University, 5.Yamagata University, 6.Addis Ababa University, 7.National Institute of Polar Research, 8.Japan Geochronology Network, 9.Robotista, 10.Graduate School of Human and Environmental Studies, Kyoto University, 11.X-treme Composite Japan, 12.Kumamoto University)