*Yosuke Miyagi¹, Ryohei Kawaguchi¹, Taku Ozawa¹, Hiroaki Takahashi² (1.National Research Institute for Earth Science and Disaster Prevention, 2.Institute of Seismology and Volcanology, Hokkaido University)

*Hiroshi Shimizu¹, Yoshihisa Iio⁸, Shin'ichi Sakai⁶, Tomomi Okada⁵, Hiroaki Takahashi³, Toshiki Watanabe⁷, Kazuhiko Goto², Takahiro Ohkura⁹, Youichi Asano¹⁰, Takeshi Matsushima¹, Yusuke Yamashita⁸, Manami Nakamoto¹, Masahiro Miyazaki⁸, Satoshi Matsumoto¹, Koki Aizawa¹, Azusa Shito¹, Kazunari Uchida¹, Rintaro Miyamachi¹, Megumi Kamizono¹, Yoshiko Teguri¹, Hiroki Miyamachi², Shigeru Nakao², Hiroshi Yakiwara², Shuichiro Hirano², Mako Ohzono³, Takahiro Shiina³, Takada Masamitsu³, Masayoshi Ichiyanagi³, Teruhiro Yamaguchi³, Okada Kazumi³, Masahiro Kosuga⁴, Ryosuke Azuma⁵, Naoki Uchida⁵, Kentaro Emoto⁵, Yusaku Ohta⁵, Toshiki Kaida⁵, Tomofumi Kozono⁵, Syuichi Suzuki⁵, Ryota Takagi⁵, Tomotsugu Demachi⁵, Hisashi Nakahara⁵, Takashi NAKAYAMA⁵, Satoshi Hirahara⁵, Toru Matsuzawa⁵, Satoshi Miura⁵, Mare Yamamoto⁵, Takaya Iwasaki⁶, Naoshi Hirata⁶, Takashi Iidaka⁶, Eiji Kurashimo⁶ (1.Institute of Seismology and Volcanology, Faculty of Sciences, Kyushu University, 2.Graduate School of Science and Engineering,Kagoshima University, 3.Graduate School of Science, Hokkaido University, 4.Graduate School of Science and Technology, Hirosaki University, 5.Graduate School of Science, Tohoku University, 6.Earthquake Research Institute, The University of Tokyo, 7.Graduate School of Environmental Studies, Nagoya University, 8.Disaster Prevention Research Institute, Kyoto University, 9.Graduate School of Science, Kyoto University, 10.National Research Institute for Earth Science and Disaster Prevention)

*Manami Nakamoto¹, Satoshi Matsumoto¹, Takeshi Matsushima¹, Shin'ichi Sakai², Yusuke Yamashita³, Masahiro Miyazaki³, Yoshihisa Iio³, Tomomi Okada⁴, Hiroaki Takahashi⁵, Toshiki Watanabe⁶, Kazuhiko Goto⁷, Youichi Asano⁸, Hiroshi Shimizu¹, Group for urgent joint seismic observation of the 2016 Kumamoto earthquake (1.Institute of Seismology and Volcanology, Kyushu University, 2.Earthquake Research Institute, The University of Tokyo, 3.Disaster Prevention Research Institute, Kyoto University, 4.Research Center for Prediction of Earthquakes and Volcanic Eruptions, Tohoku University, 5.Institute of Seismology and Volcanology, Hokkaido University, 6.Earthquake and Volcano Research Center, Nagoya University, 7.Nansei-Toko Observatory for Earthquakes and Volcanoes, Kagoshima University, 8.National Research Institute for Earth Science and Disaster Resilience)

*Shigeru Nakao¹, Takeshi Matsushima², Takao Tabei³, Tadashi Yamashina⁴, Takahiro Ohkura⁵, Takuya NISHIMURA⁶, Takuo Shibutani⁶, Masahiro Teraishi⁶, Takeo Ito⁷, Takeshi Sagiya⁸, Kenjiro Matsuhiro⁷, Teruyuki Kato⁹, Jun'ichi Fukuda⁹, Atsushi Watanabe⁹, Satoshi Miura¹⁰, Yusaku Ohta¹⁰, Tomotsugu Demachi¹⁰, Hiroaki Takahashi¹¹, Mako Ohzono¹¹, Teruhiro Yamaguchi¹¹, Okada Kazumi¹¹ (1.Department of Earth and Environmental Sciences, Graduate School of Science and Engineering, Kagoshima University, 2.Institute of Seismology and Volcanology, Faculty of Sciences, Kyushu University, 3.Department of Applied Science Department, Faculty of Science, Kochi University, 4.Kochi Earthquake Observatory, Faculty of Science ,Kochi University, 5.Aso Volcanological Laboratory, Institute for Geothermal Sciences, Graduate School of Science, Kyoto University, 6.Disaster Prevention Research Institute, Kyoto University, 7.Earthquake and Volcano Research Center, Graduate School of Environmental Studies, Nagoya University, 8.Disaster Mitigation Research Center, Nagoya University, 9.Earthquake Research Institute, University of Tokyo, 10.Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University, 11.Institute of Seismology and Valcanology, Graduate School of Science, Hokkaido University)

*Mako Ohzono¹, Hiroaki Takahashi¹ (1.Institute of Seismology and Volcanology, Graduate School of Science, Hokkaido University)

*Manami Nakamoto¹, Satoshi Matsumoto¹, Takeshi Matsushima¹, Shin'ichi Sakai², Yusuke Yamashita³, Masahiro Miyazaki³, Yoshihisa Iio³, Tomomi Okada⁴, Hiroaki Takahashi⁵, Toshiki Watanabe⁶, Kazuhiko Goto⁷, Youichi Asano⁸, Hiroshi Shimizu¹, Group for urgent joint seismic observation of the 2016 Kumamoto earthquake (1.Institute of Seismology and Volcanology, Kyushu University, 2.Earthquake Research Institute, The University of Tokyo, 3.Disaster Prevention Research Institute, Kyoto University, 4.Research Center for Prediction of Earthquakes and Volcanic Eruptions, Tohoku University, 5.Institute of Seismology and Volcanology, Hokkaido University, 6.Earthquake and Volcano Research Center, Nagoya University, 7.Nansei-Toko Observatory for Earthquakes and Volcanoes, Kagoshima University, 8.National Research Institute for Earth Science and Disaster Resilience)

*Shigeru Nakao¹, Takeshi Matsushima², Takao Tabei³, Tadashi Yamashina⁴, Takahiro Ohkura⁵, Takuya NISHIMURA⁶, Takuo Shibutani⁶, Masahiro Teraishi⁶, Takeo Ito⁷, Takeshi Sagiya⁸, Kenjiro Matsuhiro⁷, Teruyuki Kato⁹, Jun'ichi Fukuda⁹, Atsushi Watanabe⁹, Satoshi Miura¹⁰, Yusaku Ohta¹⁰, Tomotsugu Demachi¹⁰, Hiroaki Takahashi¹¹, Mako Ohzono¹¹, Teruhiro Yamaguchi¹¹, Okada Kazumi¹¹ (1.Department of Earth and Environmental Sciences, Graduate School of Science and Engineering, Kagoshima University, 2.Institute of Seismology and Volcanology, Faculty of Sciences, Kyushu University, 3.Department of Applied Science Department, Faculty of Science, Kochi University, 4.Kochi Earthquake Observatory, Faculty of Science ,Kochi University, 5.Aso Volcanological Laboratory, Institute for Geothermal Sciences, Graduate School of Science, Kyoto University, 6.Disaster Prevention Research Institute, Kyoto University, 7.Earthquake and Volcano Research Center, Graduate School of Environmental Studies, Nagoya University, 8.Disaster Mitigation Research Center, Nagoya University, 9.Earthquake Research Institute, University of Tokyo, 10.Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University, 11.Institute of Seismology and Valcanology, Graduate School of Science, Hokkaido University)

*Mako Ohzono¹, Hiroaki Takahashi¹ (1.Institute of Seismology and Volcanology, Graduate School of Science, Hokkaido University)