G22A:
Plate Motion, Continental Deformation, and Interseismic Strain Accumulation I


Submit an Abstract to this Session


Session ID#: 57929

Session Description:
We seek studies examining the take up of plate motion in deforming zones and the buildup and release of elastic strain along major faults using space geodetic measurements, geologic observations, and geophysical data such as seismicity, marine magnetic anomalies, and transform fault azimuths.  How can GPS and InSAR be integrated to determine deformation in plate boundary zones?  To what extent can observed elastic strain buildup and past earthquakes be used to infer the likelihood of future earthquakes?  Are fault slip rates from paleoseismology identical to those from geodetic data?  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 fast are mountains currently rising?  To what degree do postseismic transients alter the nearly constant velocity of the plates, and how can postseismic transients influence the definition of Earth's reference frame?
Primary Convener:  Donald F Argus, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
Conveners:  Jeff Freymueller, University of Alaska Fairbanks, Fairbanks, AK, United States, Rui Manuel Silva Fernandes, Instituto Dom Luiz (IDL) - Universidade da Beira Interior, Covilhã, Portugal and Dr. D. Sarah Stamps, PhD, Virginia Tech, Geosciences, Blacksburg, VA, United States
Primary Liaison:  Donald F Argus, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States
Chairs:  Donald F Argus, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States and Jeff Freymueller, University of Alaska Fairbanks, Fairbanks, AK, United States
OSPA Liaison:  Dr. D. Sarah Stamps, PhD, Virginia Tech, Geosciences, Blacksburg, VA, United States
Co-Organized with:
Geodesy, and Tectonophysics

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

Proposed Co-Organized Session with:
  • T - Tectonophysics
Index Terms:

1209 Tectonic deformation [GEODESY AND GRAVITY]
3040 Plate tectonics [MARINE GEOLOGY AND GEOPHYSICS]
7230 Seismicity and tectonics [SEISMOLOGY]
8107 Continental neotectonics [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Measurements of Interseismic Deformation Using Dense Catalogs of SAR Data (Invited) (370747)
Yuri A Fialko, University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States and Ekaterina Tymofyeyeva, Scripps Institution of Oceanography, Institute of Geophysics and Planetary Physics, UCSD, La Jolla, United States
Towards large-scale, InSAR-derived surface velocities and strain rates for the global tectonic belts (Invited) (397577)
Jonathan R. Weiss1, Tim J Wright2, Andrew J Hooper2, Karsten Spaans2, Nicholas Greenall2, Richard J Walters3, Pablo J González4, Zhenhong Li5, Chen Yu6, Lin Shen2, Barry Parsons7, John R Elliott8, Yu Zhou9, Ekbal Hussain10, Nicholas Dodds11, Qi Ou7 and John Dale B. Dianala11, (1)NOAA/NWS/Pacific Tsunami Warning Center, Honolulu, United States, (2)University of Leeds, COMET, School of Earth and Environment, Leeds, United Kingdom, (3)Durham University, COMET, Department of Earth Sciences, Durham, United Kingdom, (4)Institute of Natural Products and Agrobiology, Spanish National Research Council, La Laguna, Spain, (5)COMET, Newcastle University, School of Engineering, Newcastle Upon Tyne, United Kingdom, (6)COMET, Newcastle University, School of Engineering, Tyne and Wear, United Kingdom, (7)University of Oxford, COMET, Department of Earth Sciences, Oxford, United Kingdom, (8)University of Leeds, COMET, School of Earth and Environment, Leeds, LS2, United Kingdom, (9)Sun Yat-Sen University, Guangzhou, China, (10)British Geological Survey, Nottinghamshire, United Kingdom, (11)University of Oxford, Department of Earth Sciences, Oxford, United Kingdom
Total variation regularization of geodetically constrained block models in southwestern Taiwan (418157)
Mong-Han Huang, University of Maryland College Park, College Park, MD, United States and Eileen L Evans, California State University Northridge, Geological Sciences, Northridge, CA, United States
Aseismic fold growth in southwestern Taiwan detected by InSAR and GNSS (372974)
Kotaro Tsukahara, Hokkaido University, Sapporo, Japan and Youichiro Takada, Hokkaido University, Faculty of Science, Sapporo, Japan
Observations of Backstops in the Overriding Plate During the Megathrust Earthquake Cycle (359547)
Rob Govers, Utrecht University, Dept. Geosciences, Utrecht, Netherlands, Taco Broerse, Utrecht University, Department of Earth Sciences, Utrecht, Netherlands and Matthew W Herman, Utrecht University, Utrecht, Netherlands
Kinematics of active deformation at the Mendocino Triple Junction (401970)
Kathryn Materna, United States Geological Survey, Moffett Field, United States, Noel M Jackson, University of Missouri, Columbia, United States and Roland Burgmann, University of California Berkeley, Earth and Planetary Science, Berkeley, United States
Are Present-day Deformation and Seismicity in the Alps and the Pyrenees Examples of Super-slow Plate Boundary? Constraints from a New Analysis of GNSS Data. (352742)
Christine Masson1, Philippe Vernant2, Stephane Mazzotti3, Jean Chery4, Giorgi Khazaradze5 and Doerflinger Erik3, (1)Géosciences Montpellier, Montpellier, France, (2)Laboratoire Geosciences, Montpellier, France, (3)Géosciences Montpellier, Montpellier Cedex 05, France, (4)CNRS, Paris Cedex 16, France, (5)University of Barcelona, Department of Earth and Ocean Dynamics, Barcelona, Spain

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