T21E:
Bridging Tectonics and Earthquake Cycles II

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Session ID#: 16013

Session Description:
Long-term tectonic processes shape the bulk of conditions under which faults operate and thereby influence earthquake processes on short time scales. In turn, rupture processes locally reduce the strength of the brittle lithosphere and thereby affect long-term processes. Reconciling observations of mechanisms taking place across these different time and spatial scales will improve our understanding of the rheology of the lithosphere-asthenosphere system and may ultimately improve seismic hazard assessment. What are the driving forces and the rheological structure at plate boundaries? What are the relative contributions of rheology (temperature, fluids, chemistry) and geometry in the segmentation of fault ruptures? What are the roles of faulting and off-fault deformation in shaping the landscape and partitioning seismic and aseismic energy dissipation? We seek contributions from across the fields of geology, geodynamics, seismology, and geodesy  involving both modelling and observational studies.
Primary Convener:  Sylvain Barbot, University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States
Conveners:  Ylona van Dinther, Utrecht University, Department of Earth Sciences, Utrecht, Netherlands, Romain Jolivet, Ecole Normale Supérieure, PSL, CNRS UMR 8538, Laboratoire de Géologie, Département de Géosciences, Paris, France and Fabio Corbi, Deutsches GeoForschungsZentrum GFZ, Potsdam, Germany
Chairs:  Sylvain Barbot, University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States and Fabio Corbi, Deutsches GeoForschungsZentrum GFZ, Potsdam, Germany
OSPA Liaison:  Sylvain Barbot, University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States

Cross-Listed:
  • G - Geodesy
  • S - Seismology
Index Terms:

8118 Dynamics and mechanics of faulting [TECTONOPHYSICS]
8120 Dynamics of lithosphere and mantle: general [TECTONOPHYSICS]
8159 Rheology: crust and lithosphere [TECTONOPHYSICS]
8163 Rheology and friction of fault zones [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Low-Stress Upper Plate Near Subduction Zones and Implications for Temporal Changes in Loading Forces (Invited) (119183)
Kelin Wang, University of Victoria, School of Earth and Ocean Sciences, Victoria, BC, Canada; Pacific Geoscience Centre, Geological Survey of Canada, Sidney, BC, Canada, Yan Hu, University of California Berkeley, Berkeley Seismological Laboratory, Berkeley, United States and Keisuke Yoshida, Tohoku University, Research Center for Prediction of Earthquakes and Volcanic Eruptions, Sendai, Japan
Earthquake Clustering on Upper-plate Faults and the Subduction Thrust Controls Uplift Rate Transients and Long-term Forearc Topography along Subduction Margins (127099)
Vasiliki Mouslopoulou1, Onno Oncken1, Sebastian Hainzl2, Andy Nicol Prof3, Marcos Moreno1 and John Begg4, (1)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, (2)GFZ Helmholtz Centre for Geosciences, Potsdam, Germany, (3)University of Canterbury, Geohazards & Tectonics, Christchurch, New Zealand, (4)GNS Science, Lower Hutt, New Zealand
Interplay between Seismic Fracturing and Aseismic Creep in the Woodroffe Thrust, Central Australia – Inferences for the Rheology of Relatively “Dry” Middle Continental Crust (130209)
Sebastian Wex1, Neil S Mancktelow1, Friedrich Hawemann1, Giorgio Pennacchioni2 and Alfredo Camacho3, (1)ETH Zurich, Department of Earth Sciences, Zurich, Switzerland, (2)University of Padova, Department of Geosciences, Padova, Italy, (3)University of Manitoba, Winnipeg, MB, Canada
Patterns and Mechanisms of Interseismic, Coseismic, Late Quaternary and Pliocene Deformation in the Foothills of Southwestern Taiwan Mountain Belt (190362)
Maryline Le Beon, National Central University, Zhongli District, Taoyuan City, Taiwan, Mong-Han Huang, NASA Jet Propulsion Laboratory, Pasadena, CA, United States, Erwan Pathier, University Joseph Fourier Grenoble, Grenoble Cedex 9, France, John Suppe, National Taiwan University, Department of Geosciences, Taipei, Taiwan, Shiuh-Tsann Huang, Exploration and Development Research Institute, Chinese Petroleum Corporation, Miaoli, Taiwan and Benedicte Fruneau, University Paris-Est Créteil Val de Marne, Créteil Cedex, France
Observations and models of Co- and Post-Seismic Deformation Due to the 2015 Mw 7.8 Gorkha (Nepal) Earthquake (139575)
Kang Wang, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, United States and Yuri A Fialko, Scripps Institution of Oceanography, University of California San Diego, IGPP, La Jolla, United States
Roughness Analysis On Micro-faults In Chelung-pu Fault, Taiwan: Change In Power Spectrum Density And Hurst Exponent With Seismic Cycles (140645)
Yoshitaka Hashimoto1, Chisho Shimizu2, Shohei Kishi2, Yeh En Chao3 and Lu Wan-Chung4, (1)Kochi University, Kochi, Japan, (2)University of Kochi, Kochi, Japan, (3)NTNU National Taiwan Normal University, Taipei, Taiwan, (4)Central Geological Survey, Taipei, Taiwan
Three Dimensional Viscoelastic Postseismic Deformation of the 2013 Mw8.3 Okhotsk Deep-Focus Earthquake (Invited) (165982)
Yan Hu1,2, Roland Burgmann3, Nikolay Shestakov4, Nikolay N Titkov5, Sergey Serovetnikov6, Alexander Prytkov7, Nikolai F Vasilenko7 and Kelin Wang8, (1)University of California Berkeley, Berkeley Seismological Laboratory, Berkeley, United States, (2)University of Science and Technology of China, School of Earth and Space Sciences, Hefei, China, (3)University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States, (4)Far Eastern Federal University, Vladivostok, Russia, (5)Kamchatka Division GS RAS, Petropavlovsk-Kamchatsky, Russia, (6)Kamchatka branch of Geophysical survey, Petropavlovsk-Kamchatsky, Russia, (7)Institute of Marine Geology and Geophysics FEB RAS, Yuzhno-Sakhalinsk, Russia, (8)Geological Survey of Canada, Pacific Geoscience Centre, Sidney, BC, Canada
Detecting the surface rupture of subduction earthquakes from aftershocks (173304)
Anthony Sladen, Université Côte d’Azur, CNRS, OCA, IRD, Géoazur, Sophia-Antipolis, France and Jenny Trévisan, Université Côte d’Azur, CNRS, OCA, IRD, Géoazur, Valbonne, France

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