*Shinya Kato¹, Yoshihisa Iio², Hiroshi Katao², Masayo Sawada², Kazuhide Tomisaka² (1.Kyoto University, 2.Disaster Prevention Research Institute Kyoto University)

*Hiroki Miyamachi¹, Eiji Kurashimo², Takaya Iwasaki², Jun Oikawa², Takahiro Ohkura⁶, Hiroshi Katao³, Satoshi Matsumoto⁴, Ueki Sadato⁵, Satoshi Hirahara⁵ (1.Graduate School of Science and Engineering, Kagoshima Univ., 2.Earthquake Reserach Institute, Univ. of Tokyo, 3.Disaster Prevention Research Institute, Kyoto Univ., 4.Graduate School of Science, Kyushu Univ., 5.Graduate School of Science, Tohoku Univ., 6.Graduate School of Science, Kyoto Univ.)

*Tatsuya Mizuta¹, Tomomi Okada¹, Martha K Savage², Ryota Takagi¹, Keisuke Yoshida¹, Hiroshi Yakiwara³, Takeshi Matsushima⁴, Hiroshi Katao⁵, Yoshiko Yamanaka⁶, Masahiro Kosuga⁷, Kei Katsumata⁸, Mako Ohzono⁸, Takashi NAKAYAMA¹, Satoshi Hirahara¹, Toshio Kono¹, Toru Matsuzawa¹, Group for the aftershock observations of the 2011 off the Pacific coast of Tohoku Earthquake (1.Tohoku University , 2.Victoria University of Wellington, 3.Kagoshima University, 4.kyushu University, 5.Kyoto University, 6.Nagoya University, 7.Hirosaki University, 8.Hokkaido University)

*Ayaka Tagami¹, Tomomi Okada¹, Shin'ichi Sakai², Mako Ohzono³, Kei Katsumata³, Masahiro Kosuga⁴, Yoshiko Yamanaka⁵, Hiroshi Katao⁶, Takeshi Matsushima⁷, Hiroshi Yakiwara⁸, Takashi NAKAYAMA¹, Satoshi Hirahara¹, Toshio Kono¹, Shu'ichiro Hori¹, Toru Matsuzawa¹, Group for the aftershock observations of the 2011 off the Pacific coast of Tohoku Earthquake (1.Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University., 2.Earthquake Research Institute, University of Tokyo, 3.Institute of Seismology and Volcanology, Graduate School of Science, Hokkaido University, 4.Graduate School of Science and Technology, Hirosaki University, 5.Graduate School of Encironmental Studies, University of NAGOYA, 6.Research Center for Earthquake Prediction, Disaster Prevention Research Institute, Kyoto University, 7.Institute of Seismology and Volcanology, Faculty of Sciences, Kyushu University, 8.Nansei-toko Observatory for Earthquakes and Volcanoes, Kagoshima University)

*Sumire Maeda¹, Toru Matsuzawa², Tomomi Okada², Takeyoshi Yoshida², Masahiro Kosuga³, Hiroshi Katao⁴, Makoto Otsubo¹ (1.Research Institute of Earthquake and Volcano Geology, Geological Survey of Japan/AIST, 2.Graduate School of Science, Tohoku University, 3.Graduate School of Science and Technology, Hirosaki University, 4.Research Center for Earthquake Prediction, Disaster Prevention Research Institute, Kyoto University)