T42D:
The Nature of Creeping Faults: Where, Why, and How They Slip Slowly I


Submit an Abstract to this Session


Session ID#: 59409

Session Description:
Fault creep has been observed worldwide in continental regions as well as on many subduction thrusts. With improved resolution of fault kinematics using dense geodetic and seismologic data, the spatial distribution of fault creep has been intensively investigated on a variety of faults. In rock mechanics experiments, the frictional behavior of fault materials has been studied to better understand what enables a fault to creep. How much do we know about the similarities and differences between shallow creep (upper few km) and deep creep (>10 km deep) from microstructures, mineral composition, lithologic properties and conditions, geodesy, and geophysical methods? How well can we define zones of aseismic slip through integrated data? The goal of this session is to bring together different disciplines for improving our understanding on why and how faults creep. We encourage multi-disciplinary contributions from geological, geophysical, experimental, and modeling studies of creeping faults.
Primary Convener:  Kate Huihsuan Chen, National Taiwan Normal University, Department of Earth Sciences, Taipei, Taiwan
Convener:  Roland Burgmann, University of California Berkeley, Earth and Planetary Science, Berkeley, United States
Primary Liaison:  Kate Huihsuan Chen, Department of Earth Sciences, National Taiwan Normal University, Taipei, Taiwan
Chairs:  Kate Huihsuan Chen, Department of Earth Sciences, National Taiwan Normal University, Taipei, Taiwan and Roland Burgmann, University of California Berkeley, Earth and Planetary Science, Berkeley, United States
OSPA Liaison:  Kate Huihsuan Chen, Department of Earth Sciences, National Taiwan Normal University, Taipei, Taiwan

Cross-Listed:
  • G - Geodesy
  • MR - Mineral and Rock Physics
  • NS - Near Surface Geophysics
  • S - Seismology
Index Terms:

5112 Microstructure [PHYSICAL PROPERTIES OF ROCKS]
7230 Seismicity and tectonics [SEISMOLOGY]
8118 Dynamics and mechanics of faulting [TECTONOPHYSICS]
8163 Rheology and friction of fault zones [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Intriguing Mechanics of Fault Creep in the Neighborhood of Locked Patches (Invited) (356807)
Kelin Wang1,2, Yijie Zhu2, Edwin Nissen2 and Jiangheng He1, (1)Pacific Geoscience Centre, Geological Survey of Canada, Sidney, BC, Canada, (2)University of Victoria, School of Earth and Ocean Sciences, Victoria, BC, Canada
A long-term view of Cascadia ETS (439527)
Noel M Jackson, University of California Berkeley, Berkeley, CA, United States and Charles A Williams Jr, GNS Science, Lower Hutt, New Zealand
Observing the Small Scale of Aseismic Slip along Continental Strike Slip Faults from Space (382877)
Romain Jolivet, Ecole Normale Supérieure, PSL, CNRS UMR 8538, Laboratoire de Géologie, Département de Géosciences, Paris, France, Cécile Lasserre, Université Grenoble Alpes, ISTerre, Grenoble, France; Universite Joseph Fourier, Grenoble Cedex 09, France, Prof. Mark Simons, Ph.D., California Institute of Technology, Seismological Laboratory, Pasadena, United States, Baptiste Rousset, University of California, Berkeley, Earth and Planetary Sciences, Berkeley, CA, United States, Jean-Philippe Avouac, California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, United States, Zacharie Duputel, Université de Strasbourg-CNRS, Institut de Physique du Globe de Strasbourg, UMR-7516, Strasbourg, France, Harsha Bhat, Ecole Normale Supérieure, PSL, CNRS UMR 8538, Laboratoire de Géologie, Paris, France and Pierre Romanet, University of Tokyo, Department of Earth and Planetary Science, Bunkyo-ku, Japan
Connecting shallow and deep slow-slip-events with geologic observations and an elastic-viscoplastic solution (395747)
Nicholas W Hayman, Institute for Geophysics, Austin, TX, United States and Yanhui Suo, Ocean University of China, Qingdao, China
Shallow slow slip event on the Southern San AndreasFault triggered by the 2017 Chiapas (Mexico) earthquake (452911)
Ekaterina Tymofyeyeva1, Yuri A Fialko2, Junle Jiang3, Roger Bilham4, David T Sandwell5, Thomas K Rockwell6, Allen Gontz7 and Chelsea Blanton7, (1)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, (2)Scripps Institution of Oceanography, University of California San Diego, Institute of Geophysics and Planetary Physics, La Jolla, United States, (3)University of Oklahoma Norman Campus, School of Geosciences, Norman, United States, (4)University of Colorado at Boulder, Boulder, United States, (5)Scripps Institution of Oceanography, University of California San Diego, La Jolla, United States, (6)San Diego State University, Department of Geological Sciences, San Diego, CA, United States, (7)San Diego State University, San Diego, United States
Shallow Fault Slip and Near-fault Deformation on the Creeping Section of the San Andreas Fault (409193)
Benjamin A Brooks1, Zhen Liu2, Johanna M Nevitt3, Paul Lundgren4, Craig Len Glennie5, Morgan T Page6, Sarah E Minson7, Eric Jameson Fielding8, Todd L Ericksen9, Brittany A Erickson10, Diane E Moore1, David A Lockner1, Rufus Catchings9, Roger Bilham11 and Susan E Owen12, (1)U.S. Geological Survey, Earthquake Science Center, Menlo Park, CA, United States, (2)NASA Jet Propulsion Laboratory, Pasadena, United States, (3)USGS, Earthquake Science Center, Moffett Field, United States, (4)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, (5)University of Houston, Civil and Environmental Engineering, Houston, TX, United States, (6)U.S. Geological Survey, Earthquake Science Center, Pasadena, CA, United States, (7)U.S. Geological Survey, Earthquake Science Center, Moffett Field, CA, United States, (8)Jet Propulsion Laboratory, Pasadena, CA, United States, (9)U.S. Geological Survey, Earthquake Science Center, Moffett Field, United States, (10)Portland State University, Portland, OR, United States, (11)University of Colorado at Boulder, Boulder, United States, (12)Jet Propulsion Laboratory, Pasadena, United States
Fault creep as a frictional or viscous-creep process: An experimental study of the deformation of clay-rich fault gouges (443370)
Marieke Rempe, Ruhr University Bochum, Bochum, Germany and Dan Faulkner, University of Liverpool, Department of Earth, Ocean and Ecological Sciences, Liverpool, L69, United Kingdom
The Mechanics of Slow Slip (Invited) (405657)
Chris Marone, Pennsylvania State University Main Campus, Geosciences, University Park, PA, United States

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