T42A:
Active Tectonics and the Earthquake Cycle: Approaches, Observations, Insights II


Session ID#: 10723

Session Description:
Paleoseismic and geomorphic studies have contributed significantly over the last several decades to the conceptual understanding of fault activity and earthquake recurrence. Respective studies interpret surface and subsurface evidence of faulting to constrain a fault’s earthquake history and slip-rate. Recent advances in high-resolution surface and sub-surface imaging (e.g., GPR, GPS, InSAR, Lidar, SfM), geochronologic dating techniques, and change detection algorithms (e.g., Lidar differencing) provide means to further refine conceptual understanding of earthquake slip distribution, recurrence, and strain accumulation.
This sessions seeks to provide a stage for studies focussing on active tectonics and earthquake cycle, utilizing surface and sub-surface records of faulting. We particularly encourage submissions that focus on a) implementation of high-resolution imaging approaches into active tectonics investigations (e.g., of recent surface ruptures), b) new data sets that constrain recurrence characteristics or strain accumulation along individual faults, and c) condense respective data sets to update/modify/refine models of earthquake rupture recurrence.
Primary Convener:  Olaf Zielke, KAUST, Thuwal, Makkah, Saudi Arabia
Conveners:  Ryan D Gold, U.S. Geological Survey, Geologic Hazards Science Center, Golden, United States and Matthieu Alexis Ferry, University of Montpellier - CNRS, Geosciences Montpellier, Montpellier, France
Chairs:  Olaf Zielke, KAUST, Thuwal, Makkah, Saudi Arabia and Chris Milliner, University of Southern California, Los Angeles, CA, United States
OSPA Liaison:  Matthieu Alexis Ferry, Géosciences Montpellier, Montpellier Cedex 05, France

Cross-Listed:
  • G - Geodesy
  • NH - Natural Hazards
  • S - Seismology
Index Terms:

1209 Tectonic deformation [GEODESY AND GRAVITY]
7230 Seismicity and tectonics [SEISMOLOGY]
8036 Paleoseismology [STRUCTURAL GEOLOGY]
8175 Tectonics and landscape evolution [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Paleoseismic assessment of the Hat Creek fault using cosmogenic He-3 surface exposure dating in basalt, northeastern California: A proof of concept study (69995)
Dylan Hunter Rood1, William H Amidon2, Ryan E McKeon3, John N Baldwin4, Brian Gray4, William D Page5 and Kenneth A Farley6, (1)Imperial College London, London, United Kingdom, (2)Middlebury College, Middlebury, VT, United States, (3)Dartmouth College, Hanover, NH, United States, (4)Lettis Consultants International, Inc., Concord, CA, United States, (5)Pacific Gas and Electric Company, San Francisco, CA, United States, (6)JPL/NASA/Caltech, Pasadena, CA, United States
Near Field Deformation of the Mw 6.0 24 August, 2014 South Napa Earthquake Estimated by Airborne Light Detection and Ranging (LiDAR) Change Detection Techniques (71348)
Andrew W Lyda1, Xiao Zhang1,2, Craig Len Glennie3, Ken W Hudnut4 and Benjamin A. Brooks5, (1)University of Houston, Houston, TX, United States, (2)National Center for Airborne Laser Mapping, Houston, TX, United States, (3)University of Houston, Department of Civil & Environmental Engineering, National Center for Airborne Laser Mapping, Houston, TX, United States, (4)USGS, Pasadena Field Office, Pasadena, CA, United States, (5)USGS, Baltimore, MD, United States
Insights into Surface Manifestation of Aseismic vs. Coseismic Strike-Slip Faulting from UAV Imagery of Creep-Induced Surface Fracturing Along the Central San Andreas Fault (83590)
Michael P Bunds1, Nathan A Toke1, Andrew Lawrence1, Ramon Arrowsmith2 and J. Barrett Salisbury2, (1)Utah Valley University, Department of Earth Science, Orem, UT, United States, (2)Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States
Misbheaving Faults: The Expanding Role of Geodetic Imaging in Unraveling Unexpected Fault Slip Behavior (Invited) (59626)
William D Barnhart, University of Iowa, Iowa City, IA, United States and Richard W Briggs, USGS Geologic Hazards Science Center, Golden, United States
Coseismic Slip Variation and the Intimate Link with Fault Structure (74049)
Chris Milliner, University of Southern California, Los Angeles, CA, United States, Charles G Sammis, University of Southern California, Earth Sciences, Los Angeles, CA, United States, Amir A Allam, University of Alaska Fairbanks, Fairbanks, United States, James Francis Dolan, University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States, James Hollingsworth, ARUP, London, United Kingdom, Sebastien Leprince, California Institute of Technology, Pasadena, CA, United States and Francois Ayoub, Jet Propulsion Laboratory, Pasadena, CA, United States
Disentangling Fault Scarp Geometry and Slip-Distribution in 3D (73587)
David Mackenzie, University of Oxford, Oxford, United Kingdom and Richard T Walker, University of Oxford, Earth Sciences, Oxford, United Kingdom
Terrestrial Laser Scanner analysis of diffusion degradation models in morphological dating of fault scarp surfaces (73767)
Prabin Shilpakar and John S Oldow, University of Texas at Dallas, Richardson, TX, United States
Oceanic Transform Fault-Zone Geomorphology in the Gulf of California from High-Resolution Bathymetric Data (86264)
George E Hilley1, Felipe Aron2, Curtis W Baden3, Chris M Castillo4, Samuel A Johnstone5, Johanna M Nevitt6, Timothy McHargue2, Charles K Paull7, Robert Sare5, Lauren Shumaker5 and Holly Young5, (1)Stanford University, Earth and Planetary Sciences, Stanford, United States, (2)Stanford University, Geological Sciences, Stanford, CA, United States, (3)University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States, (4)Castillo Geophysical Ltd., Reno, NV, United States, (5)Stanford University, Stanford, CA, United States, (6)Stanford University, 345 Middlefield Rd, Stanford, United States, (7)Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States

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