G31C:
Plate Motion, Continental Deformation, and Interseismic Strain Accumulation I

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Session ID#: 15694

Session Description:
Space geodetic positioning data (particularly GNSS and InSAR) are commonly used to evaluate how plate motion is being taken up by continental deformation and the mechanisms of elastic strain cycles. Such studies often integrate geodetic solutions with geological and geophysical data in computational models. We are inviting studies that utilize geodetic and geologic/geophysical observations to investigate the character of intra-plate and plate boundary deformation zones, interseismic strain accumulation and co- and post-seismic strain release.  We seek studies that help to answer many related questions like (but not limited to): What fraction of plate motion is taken up by fault slip during earthquakes and through creep processes? And what fraction becomes part of distributed deformation off of the major faults?  How representative are the present-day angular velocities of the geologic plate tectonic motions?  To what degree do postseismic transients perturb the nearly constant velocity of the plates?
Primary Convener:  Donald F Argus, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States
Conveners:  Jeffrey Todd Freymueller, Michigan State University, Earth and Environmental Sciences, East Lansing, MI, United States, Rui Manuel Silva Fernandes, University of Beira Interior, SEGAL (UBI/IDL), Covilhã, Portugal and Dr. D. Sarah Stamps, PhD
Chairs:  Jeffrey Todd Freymueller, Michigan State University, Earth and Environmental Sciences, East Lansing, MI, United States and Rui Manuel Silva Fernandes, University of Beira Interior, SEGAL (UBI/IDL), Covilhã, Portugal
OSPA Liaison:  Donald F Argus, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States

Cross-Listed:
  • GP - Geomagnetism, Paleomagnetism and Electromagnetism
  • NH - Natural Hazards
  • S - Seismology
  • T - Tectonophysics
Index Terms:

1209 Tectonic deformation [GEODESY AND GRAVITY]
1525 Paleomagnetism applied to tectonics: regional, global [GEOMAGNETISM AND PALEOMAGNETISM]
7230 Seismicity and tectonics [SEISMOLOGY]
8158 Plate motions: present and recent [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Impact of Visco-Elastic Relaxation Following the 2010 Maule Earthquake in Chile on Adjacent Segments of the Subduction (121133)
Christophe Vigny, CNRS, Paris Cedex 16, France, Emilie Klein, Ecole Normale Supérieure, PSL Research University, CNRS UMR 8538, Laboratoire de Géologie, Paris, France and Luce Fleitout, Ecole Normale Supérieure Paris, Laboratoire de Géologie, Paris, France
Subducted Seamount Locks the Shallow Megathrust in Central Ecuador (Invited) (159923)
Jean Mathieu Nocquet1,2, Jean-Yves Collot2,3, Angelique Lepetre2, Alexandra Ribodetti2, Eddy Sanclemente2,4, Paul Jarrin1, Mohamed Chlieh2, David Graindorge5 and Philippe Charvis2, (1)Instituto Geofísico, Escuela Politécnica Nacional, Quito, Ecuador, (2)Institut de Recherche pour le Développement - IRD, Valbonne, France, (3)Investigador of the Prometeo Project of the Ministry of Higher Education, Science, Technology and Innovation, Quito, Ecuador, (4)Escuela Superior Politécnica del Litoral (ESPOL), Guayaquil, Ecuador, (5)Geo-Ocean, Univ Brest, CNRS, Ifremer, UMR5638, Plouzané, France
The Awakening of the Mentawai Section of the Sunda Megathrust: Coseismic and Postseismic Deformation of the 2007 Mw 8.4 Bengkulu Earthquake in Sumatra (159459)
Louisa L Tsang1, Emma Hill2, Sylvain Barbot3, Qiang Qiu4, Lujia Feng5, Iwan Hermawan4, Paramesh Banerjee6 and Danny Hilman Natawidjaja7, (1)Earth Observatory of Singapore, Singapore, Singapore, (2)Asian School of the Environment, Nanyang Technological University, Singapore, Singapore, (3)University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States, (4)Nanyang Technological University, Earth Observatory of Singapore, Singapore, Singapore, (5)Earth Observatory of Singapore, Nanyang Technological University, Singapore, Singapore, (6)Nanyang Technological University, Singapore, Singapore, (7)Indonesian Institute of Sciences, Research Center for Geotechnology, Bandung, Indonesia
The signature of the earthquake cycle at subduction zones: insights from simple mechanical models (118219)
Rob Govers, Utrecht University, Dept. Geosciences, Utrecht, Netherlands and Kevin P Furlong, Pennsylvania State University Main Campus, University Park, PA, United States
Sibling ruptures (Mw 7.3-7.4) within a persistent rupture barrier on the Sunda megathrust under Simeulue (170610)
Paul Monroe Morgan1, Lujia Feng2, Aron J Meltzner3, Emma Hill3, Eric Ostrom Lindsey1 and Louisa L Tsang1, (1)Earth Observatory of Singapore, Singapore, Singapore, (2)Earth Observatory of Singapore, Nanyang Technological University, Singapore, Singapore, (3)Nanyang Technological University, Earth Observatory of Singapore, Singapore, Singapore
Influence of Fault Geometry on Himalayan Megathrust Coupling (173589)
Eric Ostrom Lindsey1,2, Rafael V Almeida1, Judith Hubbard3, Louisa L Tsang1, Emma Hill4, Paul Tapponnier1 and Roland Burgmann5, (1)Earth Observatory of Singapore, Nanyang Technological University, Singapore, Singapore, (2)University of California Berkeley, Berkeley, CA, United States, (3)Earth Observatory of Singapore, Singapore, Singapore, (4)Asian School of the Environment, Nanyang Technological University, Singapore, Singapore, (5)University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States
Earthquake Potential of Active Faults in Taiwan from GPS Observations and Block Modeling (133401)
Wu-Lung Chang1, Kuo-En Ching2, Chiou-Hsien Lee3, Yirui Lee4 and Chi-Fang Lee3, (1)National Central University, Department of Earth Sciences, Kanagawa, Japan, (2)National Cheng Kung University, Geomatics, Tainan, Taiwan, (3)Department of Earth Sciences, National Central University, Taoyuan, Taiwan, (4)Sinotech Engineering Consultants, Inc., Taipei, Taiwan
Using Deep Slow Slip in New Zealand to Constrain Slip Partitioning (189805)
Noel M Jackson, University of Missouri Columbia, Columbia, MO, United States and Laura M Wallace, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany

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