G52A:
Plate Motion, Continental Deformation, and Interseismic Strain Accumulation III

Submit an Abstract to this Session



Session ID#: 30639

Session Description:
Space geodetic data, geophysical and geologic observations and models constrain how plate motion is being taken up by continental deformation and how elastic strain accumulates between earthquakes.  We invite geodetic, (e.g., GNSS, InSAR, VLBI, etc) and geologic and geophysical studies (e.g., fault slip rates, seismicity, and marine magnetic anomalies) that characterize stable plate interiors, plate boundary zone deformation and interseismic strain accumulation. New efforts using modern cyberinfrastructure and open software are particularly welcome. Can elastic strain buildup be readily related to future great earthquakes?  What fraction of plate motion is taken up by fault slip during earthquakes, and what fraction becomes part of distributed deformation off the major faults?  How does fault slip inferred from paleoseismology add up to present-day plate motion?  How fast are mountains currently rising?  To what degree do postseismic transients perturb the nearly constant velocity of the plates and influence the definition of Earth's reference frame?
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:  Dr. D. Sarah Stamps, PhD and Donald F Argus, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
OSPA Liaison:  Jeffrey Todd Freymueller, Michigan State University, Earth and Environmental Sciences, East Lansing, MI, United States

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

1240 Satellite geodesy: results [GEODESY AND GRAVITY]
3040 Plate tectonics [MARINE GEOLOGY AND GEOPHYSICS]
8002 Continental neotectonics [STRUCTURAL GEOLOGY]
8158 Plate motions: present and recent [TECTONOPHYSICS]

Abstracts Submitted to this Session:

The Kinematics of Central American Fore-Arc Motion in Nicaragua: Geodetic, Geophysical and Geologic Study of Magma-Tectonic Interactions (268948)
Peter C La Femina, Pennsylvania State University Main Campus, Department of Geosciences, University Park, PA, United States, Halldor Geirsson, University of Iceland, Institute of Earth Sciences, Reykjavik, Iceland, Armando Saballos, Instituto Nicaragüense de Estudios Territoriales, Managua, Nicaragua and Glen S Mattioli, UNAVCO, Boulder, CO, United States
Crustal Deformation in the Northern Andes – New GPS Velocity Field and “Broken Indentor” Model (283663)
James N Kellogg, University of South Carolina Columbia, Columbia, SC, United States, Héctor Mora-Páez, Servicio Geológico Colombiano (SGC), Investigaciones Geodésicas Espaciales, Bogotá, Colombia and Jeffrey Todd Freymueller, University of Alaska Fairbanks, Fairbanks, AK, United States
The Seismic Cycle Along the Chile Margin Illuminated by Recent Earthquakes (Invited) (216186)
Daniel Melnick, Universidad Austral de Chile, Valdivia, Chile and Marcos Moreno, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany
Present coupling along the Peruvian subduction asperity that devastated Lima while breaking during the 1746 earthquake (217445)
Olivier Cavalié, Aix-Marseille Université, CEREGE CNRS-IRD UMR 34, Valbonne, France, Mohamed Chlieh, Université Côte d’Azur, IRD, CNRS, Observatoire de la Côte d’Azur, Géoazur, Valbonne, France and Juan Carlos Villegas Lanza, Instituto Geofísico del Perú, Unidad de Geodesia Espacial, Lima, Peru
How many M9 Earthquakes are possible? Interseismic coupling and rupture patch magnitudes along 15 of the world’s subduction zones (213250)
Shannon E Graham, Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States, Jack Loveless, Smith College, Geosciences, Northampton, MA, United States and Brendan J Meade, Harvard University, Cambridge, MA, United States
Active Tectonics of the Far North Pacific Observed with GPS (Invited) (293572)
Julie Elliott, Michigan State University, Earth and Environmental Sciences, East Lansing, MI, United States, Jeffrey Todd Freymueller, University of Alaska Fairbanks, Fairbanks, AK, United States, Yan Jiang, Geological Survey of Canada, Sidney, Canada, Lucinda J Leonard, University of Victoria, School of Earth and Ocean Sciences, Victoria, BC, Canada, Roy D Hyndman, Geological Survey of Canada, Sidney, BC, Canada and Stephane Mazzotti, Géosciences Montpellier, Montpellier Cedex 05, France
Postseismic Deformation Following the 2002 Mw7.9 Denali Fault Earthquake (269321)
Jeffrey Todd Freymueller, Michigan State University, Earth and Environmental Sciences, East Lansing, MI, United States, Hugh Harper, Appalachian State University, Boone, United States and Yan Hu, Department of Earth and Planetary Sciences, University of California, Berkeley, CA, United States
Slip-deficit rate distribution along the Nankai trough, southwest Japan, with elastic lithosphere and viscoelastic asthenosphere (219163)
Akemi Noda, Tatsuhiko Saito and Eiichi Fukuyama, National Research Institute for Earth Science and Disaster Resilience, Tsukuba, Japan

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