[S-SS31] Active faults and paleoseismology

Mon. May 23, 2016 1:45 PM - 3:15 PM IC (2F)

Convener:*Mamoru Koarai(Earth Science course, College of Science, Ibaraki University), Hisao Kondo(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), Ken-ichi Yasue(Japan Atomic Energy Agency), Hideaki Goto(Graduate school of letters, Hiroshima University), Chair:Mamoru Koarai(Earth Science course, College of Science, Ibaraki University), Nobuhisa Matsuta(Okayama University Graduate School of Education)

Geologic and historic information on seismic cycles and on the magnitude and source faults of past earthquakes is essential information to understand future large earthquakes. The study of past faulting and seismicity is an important issue for an interdisciplinary community of seismologists, geologists, geomorphologists, archaeologists, and historians.

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1:45 PM - 2:00 PM

[SSS31-13] Paleoseismic study on the Kamishiro Fault, the northern segment of the Itaigawa-Shizuoka Tectonic Line, Japan

*Aiming Lin¹, Maomao Wang¹, Mikako Sano¹, Di Bian¹, Ninshi Fueta¹, Takashi Hosoya² (1.Department of Geophysics, Graduate School of Science, Kyoto University, 2.Chuokaihatsu Corporation, Japan)

2:00 PM - 2:15 PM

[SSS31-14] Seismic cycle of the Kamishiro fault (northern part of the Itoigawa-Shizuoka Tectonic Line active fault system) revealed by tectonic geomorphology at Warabidaira, Hakuba Village, central Japan

*Nobuhisa Matsuta¹, Nobuhiko Sugito², Daisuke Hirouchi³, Kazutaka Ikeda³, Hiroshi Sawa⁴, Mitsuhisa Watanabe⁵, Yasuhiro Suzuki⁶ (1.Okayama University Graduate School of Education, 2.Hosei University, 3.Shinshu University, 4.Tsuruoka College, 5.Toyo University, 6.Nagoya University)

2:15 PM - 2:30 PM

[SSS31-15] Vertical slip rate estimated from young lacustrine sediment core samples across the Kamishiro fault, Itoigawa-Shizuoka Tectonic Line, central Japan

*Yuichi Niwa¹, Shinji Toda¹, Daisuke Ishimura¹, YOSHIKI MORI², Masashi Omata² (1.IRIDeS, Tohoku Univ., 2.Pasco Corp.)

2:30 PM - 2:45 PM

[SSS31-16] Trench excavation survey across the 2014 rupture zone along Kamishiro fault, Itoigawa-Shizuoka Tectonic Line

*Shinji Toda¹, Daisuke Ishimura¹, Koji Okumura², Yuichi Niwa¹, YOSHIKI MORI³, Masashi Omata³, Makoto Yamazaki⁴ (1.International Research Institute of Disaster Science, Tohoku University, 2.Graduate School of Letters, Hiroshima University, 3.Pasco Corporation, 4.Yamazaki P.E. Office)

2:45 PM - 3:00 PM

[SSS31-17] Surface rupture and coseismic deformation associated with the 2014 Nagano-ken-hokubu earthquake revealed from differential LiDAR analysis

*Daisuke Ishimura¹, Shinji Toda¹, Sakae Mukoyama², Shinichi Homma² (1.Disaster Science Division, International Research Institute of Disaster Science, Tohoku University, 2.KOKUSAI KOGYO CO., LTD.)

3:00 PM - 3:15 PM

[SSS31-18] Fault displacement distribution of the 2014 Nagano-ken Hokubu earthquake based on a differential analysis of multi LiDAR-DEM data

*Yasuhira Aoyagi¹ (1.Central Research Institute of Electric Power Industry)