T41G:
Shallow Subduction Zone Structure and Dynamics III Posters


Submit an Abstract to this Session


Session ID#: 50672

Session Description:
Subduction zones play a key role in transporting and recycling earth material, as well as in initiating earthquakes and causing tsunami, and volcanic hazards. Recent investigations on the incoming plate, shallow subduction zone, and megathrust using near-field observations, core-samples, and high-resolution images have led to new insights into subduction zone dynamics. In this session we solicit contributions on all studies relevant to subduction zone dynamics from seismology, geodesy, geochemistry, numerical modeling, and seafloor sampling and drilling. Topics include but are not limited to, rupture processes and cycles of megathrust earthquakes, compositional variations of incoming plates, structure heterogeneities from the outrise to back arc, relationship between outer-rise and megathrust earthquakes, thermal and hydro-mechanical properties of the oceanic and overriding plates, and controlling factors of tectonic forces acting on the megathrust.
Primary Convener:  Hongfeng Yang, Chinese University of Hong Kong, Hong Kong, Hong Kong
Conveners:  Yan Hu, University of Science and Technology of China, School of Earth and Space Sciences, Hefei, China, Shuichi Kodaira, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan and Douglas Wiens, Washington University in St. Louis, Department of Earth, Environmental, and Planetary Science, St. Louis, United States
Primary Liaison:  Hongfeng Yang, Chinese University of Hong Kong, Earth and Environmental Sciences Programme, Hong Kong, Hong Kong
Chairs:  Hongfeng Yang, Chinese University of Hong Kong, Earth and Environmental Sciences Programme, Hong Kong, Hong Kong, Douglas Wiens, Washington University in St. Louis, Department of Earth, Environmental, and Planetary Science, St. Louis, United States, Yan Hu, University of California Berkeley, Berkeley Seismological Laboratory, Berkeley, United States and Shuichi Kodaira, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan
OSPA Liaison:  Yan Hu, University of California Berkeley, Berkeley Seismological Laboratory, Berkeley, United States
Co-Organized with:
Tectonophysics, Geodesy, and Seismology

Cross-Listed:
  • G - Geodesy
  • S - Seismology
  • V - Volcanology, Geochemistry and Petrology

Proposed Co-Organized Session with:
  • G - Geodesy
  • S - Seismology
Index Terms:

1242 Seismic cycle related deformations [GEODESY AND GRAVITY]
7240 Subduction zones [SEISMOLOGY]
8123 Dynamics: seismotectonics [TECTONOPHYSICS]
8170 Subduction zone processes [TECTONOPHYSICS]

Abstracts Submitted to this Session:

A Decade of Seismicity in the Shallow Subduction Zone of Nicaragua-Costa Rica (423183)
Albert Aguilar Suarez1, Marine Denolle2, German A Prieto1 and Heather DeShon3, (1)Universidad Nacional de Colombia, Bogota, Colombia, (2)University of Washington Seattle Campus, Department of Earth and Space Sciences, Seattle, United States, (3)Southern Methodist University, Roy Huffington Department of Earth Sciences, Dallas, TX, United States
Seismicity monitoring around the plate subduction boundary in the Suruga Trough, western flank of the Izu Collision Zone, Japan, using Ocean Bottom Seismographs (346248)
Hisatoshi Baba1, Masanao Shinohara2, Kayoko Tsuruga3, Takahito Nishiimiya4, Kenji Nakata5, Yoshihiro Sawada6, Keiji Kasahara6, Yannis Panayotopoulos7, Shintaro Abe6, Taiyo Sotani8 and Nagisa Nakao9, (1)Department of Marine and Earth Science, Tokai University, Shizuoka, Japan, (2)Univ Tokyo, Tokyo, Japan, (3)Tokyo University of Marine Science and Technology, Tokyo, Japan, (4)Meteorological Research Institute, Japan Meteorological Agency, Tsukuba, Japan, (5)Meteorological Research Institute(MRI), Japan Meteorological Agency(JMA), Tsukuba, Japan, (6)Association for the Development of Earthquake Prediction, Tokyo, Japan, (7)Association for the Development of Earthquake Prediction, Tkyo, Japan, (8)Tokai University., Shizuoka, Japan, (9)Tokai University, Tokyo, Japan
Seismic refraction velocity structure in the vicinity of the Suruga Trough axial region revealed by OBS observations. (346251)
Nagisa Nakao1, Hisatoshi Baba1, Katsuki Imamura2, Kayoko Tsuruga3, Yoshihiro Sekino4, Toshifumi Hayashi4, Tetsutaro Aikawa4, Kenji Nakata5, Takahito Nishiimiya6, Yoshihiro Sawada7, Keiji Kasahara7, Yannis Panayotopoulos8, Shintaro Abe7 and Hiroshi Sato9, (1)Tokai University, Tokyo, Japan, (2)Kokusai Cable Ship co., Ltd., Kanagawa, Japan, (3)Tokyo University of Marine Science and Technology, Tokyo, Japan, (4)Tokyo Univ. of Marine Science and Technology, Tokyo, Japan, (5)Meteorological Research Institute (MRI), Japan Meteorological Agency, Tsukuba, Japan, (6)Meteorological Research Institute, Japan Meteorological Agency, Tsukuba, Japan, (7)Association for the Development of Earthquake Prediction, Tokyo, Japan, (8)Association for the Development of Earthquake Prediction, Tkyo, Japan, (9)Univ Tokyo, Tokyo, Japan
Shallow subduction zone structures of Suruga Trough, central Japan, by means of 2-D seismic reflection and refraction surveys by Tokyo University of Marine Science and Technology (458088)
Kayoko Tsuruga1, Yoshihiro Sekino2, Toshifumi Hayashi2, Hisatoshi Baba3, Hiroshi Sato4, Ryuichi Hagita1, Tetsutaro Aikawa2, Hayato Kondo1, Chiharu Aoyama1, Jota Kanda5 and Team for seismic survey of Tokyo University of Marine Science and Technology, (1)Tokyo University of Marine Science and Technology, Tokyo, Japan, (2)Tokyo Univ. of Marine Science and Technology, Tokyo, Japan, (3)Graduate School of Oceanography, Tokai University, Shizuoka, Japan, (4)Univ Tokyo, Tokyo, Japan, (5)Tokyo Univ. Mar. Sci. Tech., Tokyo, Japan
Seismic structure of the off Fukushima, southern Japan Trench region (377730)
Kazuo Nakahigashi1, Takeshi Sato2, Gou Fujie3, Tsutomu Takahashi3, Seiichi Miura4 and Shuichi Kodaira3, (1)Tokyo University of Marine Science and Technology, Department of Marine Resources and Energy, Tokyo, Japan, (2)IFREE JAMSTEC, Yokohama, Japan, (3)JAMSTEC, Yokohama, Japan, (4)Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan
Subduction geometry and seismic structure around northern Ryukyu subduction zone (361886)
Yojiro Yamamoto1, Tsutomu Takahashi2, Yasushi Ishihara2, Koichiro Obana3, Seiichi Miura1, Shuichi Kodaira2 and YoshiYuki Kaneda4, (1)Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan, (2)JAMSTEC, Yokohama, Japan, (3)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Research Institute for Marine Geodynamics, Kanagawa, Japan, (4)Kagawa University, Kagawa, Japan
Anisotropic Feature Within the Oceanic Crust and its Relationship with Low-Frequency Earthquake Activity Beneath Western Shikoku, Southwest Japan (362436)
Katsuhiko Shiomi1, Tetsuya Takeda2 and Tomotake Ueno2, (1)National Research Institute for Earth Science and Disaster Resilience (NIED), Tsukuba, Japan, (2)National Research Institute for Earth Science and Disaster Resilience, Tsukuba, Japan
Plate boundary geometry resulting from lithospheric tearing at active STEPs: an analogue model approach (356413)
Taco Broerse1, Rob Govers1, Dimitrios Sokoutis2 and Ernst Willingshofer3, (1)Utrecht University, Department of Earth Sciences, Utrecht, Netherlands, (2)Utrecht University, Utrecht, 3584, Netherlands, (3)Department of Earth Sciences, Utrecht University., Utrecht, Netherlands
How Shallowing Slab Dip Could Produce Extensional Upper Plate Earthquakes after a Megathrust Earthquake? (364935)
Bar Oryan, Scripps Institution of Oceanography, La Jolla, United States and W Roger Buck, Columbia University of New York, Lamont-Doherty Earth Observatory, Palisades, NY, United States
Vertical tectonic stress of the Lithosphere revealed by dense gravity observations around the Tsangpo Gorge, Tibet of China (362522)
Guangyu Fu, Institute of Earthquake Forecasting, China Earthquake Administration, Beijing, China
Geologic History of the New Caledonia Trough from Potential Fields Modeling and Tectonic Reconstruction (445310)
Claire Richardson, University of Nebraska Lincoln, Lincoln, NE, United States, Caroline M Burberry, University of Nebraska Lincoln, Earth and Atmospheric Sciences, Lincoln, NE, United States and Irina Filina, University of Nebraska Lincoln, Department of Earth and Atmospheric Sciences, Lincoln, NE, United States
Tectonic Partitioning at Poorly-Coupled subduction zones: the Example of the Northern Lesser Antilles Margin. (378855)
Boris Marcaillou, University of Nice-Sophia Antipolis, Nice, France, Muriel Laurencin, IUEM, LGO UMR 6538, Plouzané, France, Milton Boucard, UMR5243 Geosciences Montpellier, Antilles University, Pointe à Pitre, Guadeloupe, Frauke Klingelhoefer, Geo-Ocean, Univ Brest, CNRS, Ifremer, UMR6538, Plouzané, France, Jean-Frederic Lebrun, Universite des Antilles Guadeloupe, Departement de Geologie, Pointe-à-Pitre, France, Mireille Laigle, GeoAzur, Valbonne, France and David Graindorge, Geo-Ocean, Univ Brest, CNRS, Ifremer, UMR5638, Plouzané, France
Variations in Plate Curvature of the Incoming Lithosphere at the Japan Trench and Seismicity at the Trench Outer Slope (389075)
Emmanuel Soliman M Garcia, Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan and Yoshihiro Ito, Kyoto University, Disaster Prevention Research Institute, Kyoto, Japan
Origin of fluids involved in paleo-plate-boundary décollement in the Kodiak accretionary complex (400675)
Tsuyoshi Ishikawa, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan and Asuka Yamaguchi, University of Tokyo, Atmosphere and Ocean Research Institute, Kashiwa, Japan
Delimitation of segments of the Nazca and Caribbean Plates beneath Colombia using P-wave travel time residuals. (397599)
Gustavo Posada, Universidad Nacional de Colombia, Medellin, Medellin, Colombia, Gaspar Monsalve, Universidad Nacional de Colombia, Facultad de Minas, Medellín, Colombia and Agustin Cardona, Universdad Nacional de Colombia, Sede Medellín, Medellín, Colombia
Both Upper and Lower Plates Controlled the Great 2011 Tohoku-oki Earthquake (401834)
Dapeng Zhao and Xin Liu, Tohoku University, Sendai, Japan
Deformation of the oceanic asthenosphere and mantle wedge following the 2010 Mw 8.8 Maule earthquake (387668)
Qiang Qiu1, Jonathan R. Weiss2, Sylvain Barbot3, James H Foster4, Tim J Wright5, Alexander Saunders6, Michael G Bevis7, Robert Smalley Jr8, Sergio Cimbaro9, Luis Eduardo Lenzano10, Jorge Barón11, Juan Carlos CARLOS Baez Sr12, Arturo Echalar13 and Jon Avery4, (1)Earth Observatory of Singapore, Singapore, Singapore, (2)NOAA/NWS/Pacific Tsunami Warning Center, Honolulu, United States, (3)University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States, (4)University of Hawaii, Hawaii Institute of Geophysics and Planetology, Honolulu, HI, United States, (5)University of Leeds, COMET, School of Earth and Environment, Leeds, United Kingdom, (6)University of Leeds, Leeds, LS2, United Kingdom, (7)The Ohio State University, School of Earth Sciences, Columbus, United States, (8)University of Memphis, Center for Earthquake Research and Information, Memphis, TN, United States, (9)Instituto Geográfico Nacional, Buenos Aires, Argentina, (10)El Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales, Mendoza, Argentina, (11)Universidad Nacional de Cuyo, International Center for Earth Sciences, Mendoza, Argentina, (12)University of Chile, Geophysics, Santiago, Chile, (13)Instituto Geográfico Militar, La Paz, Bolivia
Crustal Magmatism and Deformation Fabrics in Northeastern Japan Constrained by Ambient Seismic Noise (417639)
Kai-Xun Chen1,2, Yuancheng Gung3, Ban-Yuan Kuo4 and Tzu-Ying Huang3, (1)Brown University, Dept. of Earth, Environmental and Planetary Sciences, Providence, RI, United States, (2)Department of Geosciences, National Taiwan University, Taipei, Taiwan, (3)National Taiwan University, Taipei, Taiwan, (4)Academia Sinica, Institute of Earth Sciences, Taipei, Taiwan
Using Receiver Functions to Understand a Seismic Anomaly in Central Chile (425379)
Elize Chaves1, Jessica Domino1 and Alex Nikulin2, (1)Binghamton University, Binghamton, NY, United States, (2)Binghamton University, Department of Geological Sciences and Environmental Studies, Binghamton, United States
Under-thrusting sediment velocity structure and its tectonic implications in the southernmost Ryukyu subduction system (426655)
Ching-Fu Kao1, Yi-Ching Yeh1, Jing-Yi Lin2 and Shu-Kun Hsu3, (1)Department of Earth Sciences, National Central University, Taoyuan City, Taiwan, (2)NCU National Central University of Taiwan, Jhongli, Taiwan, (3)Natl Central Univ, Chung-Li, Taiwan
3D velocity model and receiver functions highlight forearc deformation induced by subducting bathymetric features (Central Vanuatu) (428909)
Oceane Foix, Institut de Physique du Globe de Paris, Paris, France, Wayne C Crawford, Institut de Physique du Globe de Paris (IPGP), CNRS & Université Paris Cité, Paris, France, Ivan Koulakov, IPGG SB RAS, Novosibirsk, Russia, Marc M Regnier, Géoazur - Université Côte d'Azur - IRD - CNRS - Observatoire de la côte d'Azur, Valbonne, France, Audrey Galve, Université Côte d’Azur, CNRS, IRD, Observatoire de la Côte d’Azur, Géoazur, Valbonne, France, Christian Baillard, Ecole Normale Supérieure Paris, Geology, Paris, France, Bernard Pelletier, IRD Nouvelle-Calédonie, Nouméa, New Caledonia and Esline Garaebiti, Vanuatu Meteorology and Geohazards Department, Port Vila, Vanuatu
Analysis of the tectonic deformations in the Japanese island arc following the 2011 Tohoku earthquake based on satellite geodetic data (432278)
Irina Sergeevna Vladimirova1,2, Yuri Vladimirovitch Gabsatarov1,2, Grigory M Steblov1,3 and Leopold Isaevich Lobkovsky1,4, (1)Moscow Institute of Physics and Technology, Moscow, Russia, (2)Geophysical Survey RAS, Obninsk, Russia, (3)Schmidt Institute of Physics of the Earth RAS, Moscow, Russia, (4)Institute of oceanology, Moscow, Russia
Analysis of postseismic deformations after the 2010 Maule earthquake based on GPS data (433706)
Yuri Vladimirovitch Gabsatarov1,2, Irina Sergeevna Vladimirova1,2, Grigory M Steblov1,3 and Leopold Isaevich Lobkovsky1,4, (1)Moscow Institute of Physics and Technology, Moscow, Russia, (2)Geophysical Survey RAS, Obninsk, Russia, (3)Schmidt Institute of Physics of the Earth RAS, Moscow, Russia, (4)Institute of oceanology, Moscow, Russia

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