T31C:
Subduction Top to Bottom (ST2B-2) I Posters

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Session ID#: 16056

Session Description:
From top-to-bottom, many geological, geophysical, petrologic/geochemical, and theoretical advances have been made toward understanding subduction zone processes and dynamics since AGU Geophysical Monograph “Subduction Top to Bottom” was published 20 years ago. This session and a related themed issue in GEOSPHERE are intended to revisit the issues that were explored in the 1996 publication and re-assess them in light of recent advancements as well as explore new discoveries and advances in subduction zone research. We invite the broadest possible range of contributions, including subduction-related hazards (volcanic eruptions, earthquakes and tsunamis) and resources.
Primary Convener:  Gray E Bebout, Lehigh University, Dept. Earth and Environmental Sciences, Bethlehem, PA, United States
Conveners:  Robert J Stern, University of Texas at Dallas, Geosciences, Richardson, TX, United States, Philippe Agard, Sorbonne Université, CNRS-INSU, Institut des Sciences de la Terre Paris, ISTeP, Paris, France and Laura M Wallace, University of Texas, Institute for Geophysics, Austin, United States
Chairs:  Laura M Wallace, University of Texas, Institute for Geophysics, Austin, United States, Philippe Agard, Sorbonne Université, CNRS-INSU, Institut des Sciences de la Terre Paris, ISTeP, Paris, France and Robert J Stern, University of Texas at Dallas, Geosciences, Richardson, TX, United States
OSPA Liaison:  Robert J Stern, University of Texas at Dallas, Geosciences, Richardson, TX, United States

Cross-Listed:
  • DI - Study of the Earth's Deep Interior
  • MR - Mineral and Rock Physics
  • S - Seismology
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

1031 Subduction zone processes [GEOCHEMISTRY]
7240 Subduction zones [SEISMOLOGY]
8104 Continental margins: convergent [TECTONOPHYSICS]
8413 Subduction zone processes [VOLCANOLOGY]

Abstracts Submitted to this Session:

Subduction Initiation Along Passive Margins Through 2D and 3D Numerical Models (130895)
Jie Liao, ETH Swiss Federal Institute of Technology Zurich, Zurich, Switzerland and Taras Gerya, ETH Zurich, Department of Earth and Planetary Sciences, Zurich, Switzerland
Heterogeneous Structure in the incoming Philippine Sea plate along the southwestern Nankai Trough (129791)
Ayako Nakanishi1, Yojiro Yamamoto1, Mikiya Yamashita1, Gou Fujie1, Seiichi Miura1, Shuichi Kodaira2 and Yoshiyuki Kaneda3, (1)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (2)Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan, (3)Nagoya University, Nagoya, Japan
Quantification and implications of dispersed volcanic ash as an input to the Nankai Subduction Zone (178008)
Rachel Scudder1,2, Richard W Murray3, Julie Christin Belo4, Steffen Kutterolf4, Michael Underwood5 and Kuo-Lung Wang6, (1)Texas A&M University College Station, College Station, TX, United States, (2)Boston University, Boston, MA, United States, (3)Boston University, Earth and Environment, Boston, MA, United States, (4)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (5)University of Missouri Columbia, Department of Geological Sciences, Columbia, MO, United States, (6)Academia Sinica, Institute of Earth Sciences, Taipei, Taiwan
Structural characteristics around the frontal thrust along the Nankai Trough revealed by bathymetric and seismic reflection survey (130300)
Mikiya Yamashita1, Ayako Nakanishi1, Gregory F Moore2, Shuichi Kodaira3, Yasuyuki Nakamura4, Seiichi Miura1 and Yoshiyuki Kaneda5, (1)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (2)University of Hawaii at Manoa, Earth Sciences, Honolulu, United States, (3)Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan, (4)Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Research Institute for Marine Geodynamics, Yokohama, Japan, (5)Nagoya University, Nagoya, Japan
Monitoring Deformation Offshore Northern Chile Using a Seafloor Geodetic Network (GeoSEA) (133207)
Katrin Hannemann1, Dietrich Lange1, Heidrun Kopp1, Florian Petersen1 and Eduardo Contreras-Reyes2, (1)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (2)University of Chile FCFM, Department of Geophysics, Santiago, Chile
Offshore-aftershock sequence of the Mw8.1 2014 Iquique earthquake (133713)
Dietrich Lange1, Ingo Grevemeyer1, Katrin Hannemann1, Heidrun Kopp1, Sergio Eduardo Barrientos2, Eduardo Contreras-Reyes3 and Emilio E. Vera4, (1)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (2)Universidad de Chile, Centro Simológical Nacional, Santiago, Chile, (3)University of Chile FCFM, Department of Geophysics, Santiago, Chile, (4)University of Chile, Department of Geophysics, Santiago, Chile
Detailed Three Dimensional Structural Analysis of the Outer Nankai Accretionary Wedge, Kii-Kumano Region, Southwest Japan (135955)
Sarah E Bremmer, University of Wisconsin Madison, Madison, WI, United States and Harold J Tobin, University of Washington Seattle, Earth and Space Sciences, Seattle, WA, United States
Seismological structure of the subduction system associated with the Philippine Sea plate, SW Japan, - Reinterpretation of the wide-angle reflection data in the Kii Peninsula by seismic interferometry technique - (146274)
Takaya Iwasaki1, Susumu Abe2, Ken Yokota3, Eiji Kurashimo4, Takashi Iidaka1, Hiroshi Katao5, Motonori Higashinaka3, Ayako Nakanishi6 and Kaneda Yoshiyuki7, (1)University of Tokyo, Bunkyo-ku, Japan, (2)JAPEX Japan Petroleum Exploration, Tokyo, Japan, (3)JGI, Inc., Tokyo, Japan, (4)The University of Tokyo, Earthquake Research Institute, Tokyo, Japan, (5)Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan, (6)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (7)IECMS, Kagawa University, Takamatsu, Japan
The Contribution of Slope and Basin Sediments to Fluid Budgets of the Costa Rica and the Nankai Trough Margins (149076)
Elizabeth Screaton1, Stephanie R. James1, Lanie Nicole Meridth2, Tania Villaseñor2, John M. Jaeger2 and William Kenney3, (1)University of Florida, Ft Walton Beach, FL, United States, (2)University of Florida, Gainesville, FL, United States, (3)University of Florida, Land Use and Environmental Change Institute, Gainesville, FL, United States
Finite Source Modeling of the January 2015 Mendocino Transform Earthquake using the Cascadia Initiative dataset (149585)
Jianhua Gong, Woods Hole Oceanographic Institution, Woods Hole, United States and Jeffrey Joseph McGuire, USGS, Moffett Field, CA, United States
An Absolute Self-Calibrating Pressure Recorder for Campaign-Style Detection of Vertical Seafloor Deformation in the Cascadia Subduction Zone (193600)
Matthew James Cook, University of California, San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States, Emily C Roland, Western Washington University, Geoloy and Marine and Coastal Sciences, Bellingham, WA, United States, Glenn S Sasagawa, University of California San Diego, La Jolla, CA, United States, David A Schmidt, University of Washington Seattle, Department of Earth and Space Sciences, Seattle, United States, William S D Wilcock, University of Washington Seattle Campus, School of Oceanography, Seattle, United States and Mark A Zumberge, University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States
Initiation of GPS-Acoustics Measurements on the Continental Slope of the Cascadia Subduction Zone (149717)
C David Chadwell, University of California San Diego, La Jolla, CA, United States
Seismic Structure Related to the Philippine Sea Plate Subduction beneath the Nansei-Shoto (Ryukyu) Trench (152943)
Azusa Nishizawa, Kentaro Kaneda, Mitsuhiro Oikawa, Daishi Horiuchi, Yukari Fujioka and Chiaki Okada, Japan Coast Guard, Hydrogr. & Oceanogr. Dept., Tokyo, Japan
Peridotites outcropped in the southern Mariana Trench (154233)
Shoma Oya1, Katsuyoshi Michibayashi1, Yasuhiko Ohara2 and Teruaki Ishii3, (1)Shizuoka University, Shizuoka, Japan, (2)Hydrographic and Oceanographic Department of Japan, Tokyo, Japan, (3)Fukuda Geological Institute, Tokyo, Japan
Amplitude Changes of the Seismic Reflected Phases from the Plate Interface after the 2011 Tohoku Earthquake around its Northern Limit Region as Revealed by Active Seismic Surveys (154439)
Kimihiro Mochizuki1, Ishihara Ken2, Tomoaki Yamada3, Masanao Shinohara4, Yusuke Yamashita5, Ryosuke Azuma6, Ryota Hino6, Toshinori Sato7, Yoshio Murai8 and Hiroshi Yakiwara9, (1)University of Tokyo, Earthquake Research Institute, Bunkyo-ku, Japan, (2)Mitsui Oil Exploration Co., Ltd, Tokyo, Japan, (3)ERI, TheUniversity of Tokyo, Bunkyo-ku, Japan, (4)NIED, ERI, The University of Tokyo, Tsukuba, Japan, (5)Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan, (6)Tohoku University, Graduate School of Science, Sendai, Japan, (7)Faculty Science Chiba Univ, Chiba, Japan, (8)Hokkaido University, Sapporo, Japan, (9)Nansei-toko Observatory, Kagoshima, Japan
Examining seismicity patterns in the 2010 M 8.8 Maule rupture zone. (163063)
Rio Sophia Diniakos, University of Alabama, Tuscaloosa, AL, United States, Susan L Bilek, New Mexico Institute of Mining and Technology, Earth and Environmental Science, Socorro, United States, Charlotte A Rowe, Los Alamos National Laboratory, Los Alamos, NM, United States and Deyan Draganov, Delft University of Technology, Delft, Netherlands
Miocene-to-Recent sediment routing in the SW Japan forearc: implications for margin evolution (168653)
Sebastian G Ramirez1, Nicholas W Hayman1, Sean P S Gulick2,3, Kitty Milliken4, Daniel F Stockli5 and Hideki Masago6, (1)University of Texas at Austin, Institute for Geophysics, Austin, TX, United States, (2)The University of Texas at Austin, UTIG and EPS, Jackson School of Geosciences, Austin, United States, (3)The University of Texas at Austin, Institute for Geophysics & Department of Geological Sciences, Austin, United States, (4)University of Texas at Austin, Bureau of Economic Geology, Austin, TX, United States, (5)University of Texas at Austin, Jackson School of Geosciences, Austin, United States, (6)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Center for Deep Earth Exploration, Kanagawa, Japan
Structural Domains of the Barbados Accretionary Prism Defined by Regional Grid of 2D Seismic Lines (169271)
Shenelle Kia Cherise Gomez, University of Houston, Houston, TX, United States and Paul Mann, University of Houston, Department of Earth and Atmospheric Sciences, Houston, TX, United States
Seismicity around the source areas of the 1946 Nankai and the 1944 Tonankai earthquakes detected from data recorded at DONET stations (169328)
Kensuke Suzuki1, Shin'ichiro Kamiya1 and Narumi Takahashi2, (1)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (2)National Research Institute for Earth Science and Disaster Prevention, Tsukuba, Japan
Focal mechanism and stress inversion in the Mendocino Triple Junction from OBS data (170830)
Duo Li, GNS Science, Montreal, New Zealand, Jeffrey Joseph McGuire, USGS, Moffett Field, CA, United States and Yajing Liu, McGill University, Department of Earth and Planetary Sciences, Montreal, QC, Canada
Morphology and Role of the Investigator Fracture Zone on the Sumatra Subduction Zone Process using High-resolution Bathymetry and Seismic Data (170922)
Fernando Villanueva-Robles1,2, Satish Chandra Singh1,2, Kyle E Bradley3, Nugroho Hananto4, Frédérique Leclerc5, Yanfang Qin1,2, Shengji Wei1, Helene Delphine Carton6, Paul Tapponnier1, Kerry Sieh7, Haryadi Permana8 and Praditya Avianto9, (1)Earth Observatory of Singapore, Nanyang Technological University, Singapore, Singapore, (2)Institut de Physique du Globe de Paris, Paris, France, (3)Earth Observatory of Singapore, Singapore, Singapore, (4)National Research and Innovation Agency, Jakarta Pusat, Indonesia, (5)Géoazur, Nice-Sophia Antipolis University, Nice, France, (6)Université Paris Cité, Institut de Physique du Globe de Paris, CNRS, Paris, France, (7)Nanyang Technological University, Earth Observatory of Singapore, Singapore, Singapore, (8)Indonesian Institute of Sciences, Bandung, Indonesia, (9)Indonesian Institute of Sciences, Jakarta, Indonesia
Heat Flow Variation along the Nankai Trough Floor Correlated with the Structure of the Shikoku Basin Oceanic Crust (172493)
Makoto Yamano, The University of Tokyo, Atmosphere and Ocean Research Institute, Kashiwa, Japan, Yoshifumi Kawada, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan and Xiang Gao, Institute of Oceanology, Chinese Academy of Sciences, Key Laboratory of Marine Geology and Environment, Qingdao, China
Relation between the Deep Crustal Structure and Fluid Escape Structures at the Lesser Antilles Island arc. (124613)
Frauke Klingelhoefer1, Muriel Laurencin2, Boris Marcaillou3, Massinissa Benabdellouahed4,5, David Graindorge6, Tamara Maury5, Youssef Biari5, Mikael Evain5, Emmy Tsui-Yu Chang7, Carla Scalabrin8 and Jean-Frederic Lebrun9, (1)Geo-Ocean, Univ Brest, CNRS, Ifremer, UMR6538, Plouzané, France, (2)IUEM, LGO UMR 6538, Plouzané, France, (3)University of Nice-Sophia Antipolis, Nice, France, (4)IUEM Institut Universitaire Européen de la Mer, Plouzané, France, (5)IFREMER, Plouzané, France, (6)Geo-Ocean, Univ Brest, CNRS, Ifremer, UMR5638, Plouzané, France, (7)National Taiwan University, Institute of Oceanography, Taipei, Taiwan, (8)IFREMER, Geosciences Marines, EDROME, Plouzané, France, (9)Université des Antilles et de la Guyane, Géosciences, Pointe-à-Pitre, France
Dynamics of intraoceanic subduction initiation: 2D thermomechanical modeling (180127)
Xin Zhou, ETH Swiss Federal Institute of Technology Zurich, Zurich, Switzerland, Taras Gerya, ETH Zurich, Department of Earth and Planetary Sciences, Zurich, Switzerland, Zhonghai LI, UCAS University of Chinese Academy of Sciences, Beijing, China and Robert J Stern, University of Texas at Dallas, Geosciences, Richardson, TX, United States
Variability in seismic properties of the décollement offshore Central Sumatra (185879)
Timothy Henstock, University of Southampton, Southampton, SO14, United Kingdom and Kyle Gardner, University of Southampton, Southampton, United Kingdom
Spatiotemporal variation in the postseismic deformation of the 2011 Tohoku-oki earthquake revealed by seafloor geodetic observations (194494)
Fumiaki Tomita1, Motoyuki Kido1, Yusaku Ohta2, Ryota Hino2 and Takeshi Iinuma3, (1)Tohoku University, International Research Institute of Disaster Science, Sendai, Japan, (2)Tohoku University, Graduate School of Science, Sendai, Japan, (3)Japan Agency for Marine-Earth Science and Technology, Research and Development Center for Earthquake and Tsunami, Yokohama, Japan

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