*Mizuki Fukizawa¹, Kiyoka Murase², Masahisa Kato⁷, Yuri Ampuku³, Akira Kazama³, Shotaro Sakai³, Hiroyo Ohya⁴, Shin'ya Sakanaka⁵, Kazushi Asamura⁶, Young outreach activity STEPLE (1.National Institute of Polar Research, 2.The Graduate University for Advanced Studies, 3.Tohoku University, 4.Graduate School of Engineering, Chiba University, 5.Graduate school of International Resource Sciences, Akita University, 6.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 7.Kyoto University)

*Dieno Diba¹, Makoto Uyeshima¹, Masahiro Ichiki², Shin'ya Sakanaka³, Makoto Tamura⁴, Yiren Yuan^1,5, Marceau Gresse^1,6, Yusuke Yamaya⁶, Yoshiya Usui¹ (1.Earthquake Research Insititute, the University of Tokyo, 2.Graduate School of Science, Tohoku University, 3.Graduate School of International Resource Sciences, Akita University, 4.Research Institute of Energy, Environment and Geology, Hokkaido Research Organization, 5.Institute of Geophysics, China Earthquake Administration, 6.National Institute of Advanced Industrial Science and Technology)

*Naoyuki Wakao¹, Aoi Motoyama¹, Masahiro Ichiki¹, Yasuo Ogawa², Makoto Uyeshima³, Koichi Asamori⁴, Toshihiro Uchida⁵, Hideaki Hase⁶, Takao Koyama³, Shin'ya Sakanaka⁷, Yusuke Yamaya⁵, Koki Aizawa⁸, Toshiki Kaida¹ (1.TOHOKU UNIVERSITY, 2.Volcanic Fluid Research Center, School of Science, Tokyo Institute of Technology, 3.Earthquake research institute, the university of Tokyo, 4.Japan Atomic Energy Agency, 5.National institute of advanced industrial science and technology, 6.Geothermal Energy Research & Development Co., Ltd, 7.Graduate School of International Resource Sciences Department of Earth Resource Engineering and Environmental Science, Akita University, 8.Graduate school of science, Kyusyu university)