S53B:
Sequential Ruptures of Multifault Segments: The 2016 Kumamoto Earthquakes in Japan II Posters

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Session ID#: 13907

Session Description:
A series of powerful earthquakes and the following aftershocks has struck the Kumamoto area in Kyushu, Japan, from 14th April, 2016. Each powerful earthquake was right-lateral strike-slip faulting, which well matches with the regional stress and strain fields. Initial M6.5 earthquake occurred along the northern segment of “Hinagu fault”, which is among the 100 most active faults. About one day after the first event, M 7.3 earthquake nucleated around the north tip of Hinagu fault, and mainly propagated along the eastern segment of another active fault, named “Futagawa fault”, accompanying surface ruptures. The M 7.3 earthquake has immediately boosted a widespread seismicity along the northeastern extension including rim of Aso volcano and Beppu geothermal area. We welcome your contributions related to all topics of multi-fault segment ruptures, from aspects of seismicity evolution, ground motion, source process, geodetic observation, surface rupture observation, numerical rupture simulation, laboratory experiment and seismic hazard assessments.
Primary Convener:  Aitaro Kato, University of Tokyo, Bunkyo-ku, Japan
Conveners:  Aitaro Kato, University of Tokyo, Bunkyo-ku, Japan, Shin Aoi, National Research Institute for Earth Science and Disaster Prevention, Tsukuba, Japan and Takuya Nishimura, Kyoto University, Disaster Prevention Research Institute, Kyoto, Japan
Chairs:  Aitaro Kato, University of Tokyo, Bunkyo-ku, Japan, Shin Aoi, National Research Institute for Earth Science and Disaster Prevention, Tsukuba, Japan and Takuya Nishimura, Kyoto University, Disaster Prevention Research Institute, Kyoto, Japan
OSPA Liaison:  Aitaro Kato, University of Tokyo, Bunkyo-ku, Japan

Cross-Listed:
  • T - Tectonophysics
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

7209 Earthquake dynamics [SEISMOLOGY]
7212 Earthquake ground motions and engineering seismology [SEISMOLOGY]
7223 Earthquake interaction, forecasting, and prediction [SEISMOLOGY]
7280 Volcano seismology [SEISMOLOGY]

Abstracts Submitted to this Session:

Seismicity and structure changes following the 2016 Kumamoto earthquake (181094)
Nori Nakata1,2, Gregory C Beroza3 and William L Ellsworth3, (1)Stanford University, Stanford, CA, United States, (2)University of Oklahoma, ConocoPhillips School of Geology and Geophysics, Norman, OK, United States, (3)Stanford University, Department of Geophysics, Stanford, CA, United States
The characteristics of seismic activity during the 2016 Kumamoto Earthquake sequence (197009)
Tomoko Elizabeth Yano, NIED, Tsukuba, Japan and Dr. Makoto Matsubara, National Research Institute for Earth Science and Disaster Prevention, Tsukuba, Japan
Statistical Monitoring of the Seismic Activities before and after the Kumamoto Earthquakes (137631)
Takao Kumazawa, ISM Institute of Statistical Mathematics, Tokyo, Japan, Yosihiko Ogata, Institute of Statistical Mathematics, Tokyo, Japan and Hiroshi Tsuruoka, University of Tokyo, Bunkyo-ku, Japan
3-D Dynamic rupture simulation for the 2016 Kumamoto, Japan, earthquake sequence: Foreshocks and M6 dynamically triggered event (128018)
Ryosuke Ando, University of Tokyo, Department of Earth and Planetary Science, Bunkyo-ku, Japan, Yosuke Aoki, University of Tokyo, Bunkyo-ku, Japan, Takahiko Uchide, National Institute of Advanced Industrial Science and Technology (AIST), Geological Survey of Japan, Tsukuba, Japan, Kazutoshi Imanishi, Geological Survey of Japan, AIST, Tsukuba, Japan, Satoshi Matsumoto, Kyushu University, Institute of Seismology and Volcanology, Fukuoka, Japan and Takuya Nishimura, Kyoto University, Disaster Prevention Research Institute, Kyoto, Japan
Mapping of the surface rupture induced by the M 7.3 Kumamoto Earthquake along the Eastern segment of Futagawa fault using image correlation techniques (141738)
Nima Ekhtari, University of Houston, Civil and Environmental Engineering, Houston, United States, Craig Len Glennie, University of Houston, Department of Civil & Environmental Engineering, National Center for Airborne Laser Mapping, Houston, TX, United States, Eric Jameson Fielding, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States and Cunren Liang, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
Surface rupture characteristics of the 2016 Kumamoto earthquake from field data and correlation of lidar and optical imagery (198767)
Lia Joyce Lajoie, Colorado School of Mines, Golden, CO, United States, Edwin Nissen, University of Victoria, School of Earth and Ocean Sciences, Victoria, BC, Canada, James Hollingsworth, Institut des Sciences de la Terre, Université Grenoble Alpes, Grenoble, France, Tadashi Maruyama, Geological Survey of Japan, Tsukuba, Ibaraki, Japan and Tatsuro Chiba, Asia Air Survey Co., LTD., Kawasaki, Japan
Slip partitioning during the 2016 Kumamoto earthquake sequence revealed by fault modeling of the ALOS2 pixel offset data (133885)
Dr. Yuji Himematsu, The University of Tokyo, Earthquake Research Institute, Tokyo, Japan and Masato Furuya, Hokkaido University, Department of Earth and Planetary Sciences, Earth and Planetary Dynamics, Sapporo, Japan
The 2016 Mw7.0 Kumamoto, Japan earthquake: the rupture propagation under extensional stress (145593)
Yingfeng Zhang1, Xinjian Shan1, Guohong Zhang2 and Wenyu Gong1, (1)State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing, China, (2)Institute of Geology, China Earthquake Administration, State Key Laboratory of Earthquake Dynamics, Beijing, China
Fault structures in the focal area of the 2016 Kumamoto earthquake revealed by derivatives and structure parameters of a gravity gradient tensor (147002)
Yoshihiro Hiramatsu1, Nayuta Matsumoto2 and Akihiro Sawada2, (1)Kanazawa University, Graduate School of Natural Science and Technology, Kanazawa, Japan, (2)Kanazawa University, Kanazawa, Japan
Concentrated Ground Motion Distribution Due to Diagonal Rupture Propagation during the Mw 7.0 Event of the 2016 Kumamoto, Japan, Earthquakes (188008)
Kazuki Koketsu, Hiroe Miyake, Hiroaki Kobayashi and Sunhe Yun, Earthquake Research Institute, University of Tokyo, Tokyo, Japan
Rupture history of the 2016 Mw 7.0 Kumamoto earthquake constrained by the local strong motion, teleseismic body and surface waves (196819)
JinLai Hao, Institute Geology & Geophysics, Beijing, China, Chen Ji, University of California Santa Barbara, Santa Barbara, CA, United States and ZhenXing Yao, Institute of Geology and Geophysics CAS, Beijing, China
Estimation of source processes of the 2016 Kumamoto earthquakes from strong motion waveforms (137105)
Hisahiko Kubo1, Wataru Suzuki1, Shin Aoi1 and Haruko Sekiguchi2, (1)National Research Institute for Earth Science and Disaster Resilience, Tsukuba, Japan, (2)Disaster Prevention Research Institute, Kyoto University, Uji, Japan
Source Rupture Process of the 2016 Kumamoto Prefecture, Japan, Earthquake Derived from Near-Source Strong-Motion Records (127438)
Ao Zheng and Wenbo Zhang, University of Chinese Academy of Sciences, Beijing, China
Imaging of Initial Rupture Process of the 2016 Kumamoto, Japan, Earthquake (194139)
Hiroshi Takenaka, Takamasa Usami and Masanao Komatsu, Okayama University, Okayama, Japan
Super-shear fault rupture propagation during the 2016/04/16 Kumamoto earthquake (Mw7.1) imaged by seismic back-projection and KNET/KiKnet strong motion records (144491)
Nelson E Pulido, National Research Institute for Earth Science and Disaster Resilience, Earthquake and Tsunami Research Division, Tsukuba, Japan; NIED National Research Institute for Earth Science and Disaster Prevention, Tsukuba, Japan
Near-Fault Strong Ground Motions during the 2016 Kumamoto, Japan, Earthquake (146165)
Tomotaka Iwata, Kyoto University, Kyoto, Japan and Kimiyuki Asano, Kyoto University, Disaster Prevention Research Institute, Uji, Kyoto, Japan
Broadband Ground Motion Observation and Simulation for the 2016 Kumamoto Earthquake (193839)
Hiroe Miyake1, Kosuke Chimoto2, Hiroaki Yamanaka2, Seiji Tsuno3, Masahiro Korenaga3, Nobuyuki Yamada4, Takeshi Matsushima5 and Koji Miyakawa1, (1)Earthquake Research Institute, University of Tokyo, Tokyo, Japan, (2)Tokyo Institute of Technology, Yokohama, Japan, (3)Railway Technical Research Institute, Kokubunji, Japan, (4)University of Teacher Education Fukuoka, Munakata, Japan, (5)Kyushu University, Shimabara, Japan
FDM Simulation of The 2016 West Off Satsuma Peninsula, Kyushu, Japan, Earthquakes by Using Land-Ocean Unified 3D Structure Model (198272)
Taro Okamoto, Tokyo Institute of Technology, Tokyo, Japan, Hiroshi Takenaka, Okayama University, Okayama, Japan, Takeshi Nakamura, National Research Institute for Earth Science and Disaster Resilence, Tsukuba, Japan and Tatsuhiko Hara, Building Research Institute, Ibaraki, Japan
Attenuation Characteristics of Strong Motions during the 2016 Kumamoto Earthquakes including Near-Field Records (176136)
Hongjun Si, Kazuki Koketsu, Hiroe Miyake and Rami Ibrahim, Earthquake Research Institute, University of Tokyo, Tokyo, Japan
Imaging of multi-geophysical parameters in the 2016 Kumamoto earthquake (MJ7.3) in Kyushu of southwest Japan (136660)
Zhi Wang, SCSIO South China Sea Institute of Oceanology, Chinese Academy of Sciences, Key Laboratory of Marginal Sea Geology, Guangzhou, China and Yoshio Fukao, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan
Strain budget accompanied with the 2016 Kumamoto earthquakes inferred from geodetic and geological data (167252)
Tsuyoshi Watanabe, JAEA Japan Atomic Energy Agency, Toki, Japan, Koichi Asamori, Japan Atomic Energy Agency, Toki, Gifu Pref., Japan and Koji Umeda, Hirosaki University, Department of Earth and Environmental Sciences, Aomori, Japan

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