MR002
Crustal deformation and heterogeneity from laboratory experiments to large earthquakes
Session ID#: 251000
Session Description:
This session focuses on crustal deformation across a range of space-time scales from millimeter-scale laboratory experiments to large faults. We solicit contributions that quantify geologic heterogeneity (e.g., stress, pressure, slip, visco/elastic properties, geometry, surface roughness and composition) and integrate heterogeneity into numerical models and laboratory experiments. Topics of interest include rock fracture and friction, fault creep, slow-slip, tremor, dynamic rupture, seismic source characterizations, seismic sequence modeling, pore pressure effects and preparatory processes before dynamic failure. We particularly invite innovative studies that explore deformation processes across different space-time scales using numerical, observational and experimental tools.
Co-Sponsor(s):
Index Terms:
8118 Dynamics and mechanics of faulting [TECTONOPHYSICS]
8163 Rheology and friction of fault zones [TECTONOPHYSICS]
8164 Stresses: crust and lithosphere [TECTONOPHYSICS]
Primary Convener: Thomas Goebel, University of Memphis, Center for Earthquake Research & Information, Memphis, United States
Conveners: Yihe Huang, Earth and Environmental Sciences Department, University of Michigan, Ann Arbor, United States, Semechah K. Y. Lui, Caltech, Pasadena, United States and Sylvain Barbot, University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States
Student/Early Career Convener: Navin Thapa, University of Memphis, Center for Earthquake Research and Information, Memphis, TN, United States
Neural operator accelerated earthquake sequence simulations with evolving elastic heterogeneities (1865723)
Taiyi Wang, California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States, Mohamed Abdelmeguid, University of Illinois at Urbana Champaign, Urbana, IL, United States, Zachary E. Ross, California Institute of Technology, Seismological Laboratory, Pasadena, United States and Camilla Cattania, Deutsches GeoForschungsZentrum GFZ, Potsdam, Germany
Observations of and physical basis for off-fault variations in elastic properties during the seismic cycle in laboratory stick-slip experiments (1896703)
Kwabena Poku-Agyemang, Utah State University, Logan, UT, United States, Srisharan Shreedharan, Utah State University, Department of Geosciences, Logan, United States, Chris Marone, Sapienza University of Rome, Rome, Italy and Jacques Riviere, Pennsylvania State Universtity, Engineering Science and Mechanics, University Park, United States
Transient strain and electrical conductivity due to fault formation in laboratory stepovers (1902747)
Sara Beth Leach Cebry, U. S. Geological Survey, Earthquake Science Center, Moffett Field, United States, Tamara Jeppson, US Geological Survey, Moffett Field, United States and David A Lockner, USGS Earthquake Science Center, Menlo Park, United States
Effects of Contact Stress Distribution on Slip Stability in Experimental Faults (1922286)
Julia Baumgarte, McGill University, Earth and Planetary Sciences, Montreal, QC, Canada, Lekima Yakuden, University of Victoria, Victoria, BC, Canada and James D Kirkpatrick, University of Nevada Reno, Reno, United States
Frictional Variations Control Rupture Segmentation and Seismic Super-Cycles on Slowly Slipping Faults (1935949)
Zhen Li, California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States, Sylvain Barbot, University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States and Teng Wang, School of Earth and Space Sciences, Peking University, Beijing, China
Numerical Modeling of Rupture Interactions Across Multiple Asperities: Comparison with Laboratory Earthquake Cycles (1939956)
Yudong Sun, Massachusetts Institute of Technology, Cambridge, MA, United States, Jun Young Song, Cornell University, Civil and Environmental Engineering, Ithaca, United States, Camilla Cattania, Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, Cambridge, MA, United States and Gregory C Mclaskey, Cornell University, Civil and Environmental Engineering, Ithaca, NY, United States
A rock-centric framework for earthquake dynamics (1940264)
Mingqi Liu1, Binhao Wang1, Baoning Wu2, Sezim Guvercin3, Lei Zhang4, Zekang Yang4, Caroline Seyler3, John P Platt5 and Sylvain Barbot1, (1)University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States, (2)University of California, San Diego, Scripps Institution of Oceanography, San Diego, United States, (3)University of Southern California, Department of Earth Sciences, Los Angeles, United States, (4)Institute of Geology, China Earthquake Administration, Beijing, China, (5)University of Southern California, Earth Sciences, Los Angeles, CA, United States
Fracture Energy as a Governing Parameter from Rupture Nucleation to Propagation on a 6-Meter-Long Laboratory Fault (1940644)
Kurama Okubo1, Futoshi Yamashita1, Yoshiaki Matsumoto1 and Eiichi Fukuyama1,2, (1)National Research Institute for Earth Science and Disaster Resilience, Tsukuba, Japan, (2)Kyoto University, Department of Civil and Earth Resources Engineering, Graduate School of Engineering, Kyoto, Japan
Frictional Behavior of the East Anatolian Fault Rocks: Effects of Mineral Composition (1948816)
Jaden Swearingen1, Hiroko Kitajima2, Hisao Kondo3, Selim Özalp4, Ersin Özdemir4, Hasan Elmaci4, Can Güven5 and Eikichi Tsukuda6, (1)Texas A&M University College Station, College Station, TX, United States, (2)Texas A&M University, Center for Tectonophysics and the Department of Geology & Geophysics, College Station, United States, (3)AIST/GSJ, Tsukuba, Japan, (4)General Directorate of Mineral Research and Exploration, Ankara, Turkey, (5)General Directorate of Mineral Research and Exploratioin, Geology, Çankaya, Turkey, (6)Geological Survey of Japan, Tsukuba, Japan
Strain Localization Increases Repeating Earthquakes: Perspective from Laboratory Seismicity (1949056)
Kiran Pandey, University of Memphis, Center for Earthquake Research & Information, Memphis, TN, United States, Navin Thapa, University of Memphis, Center for Earthquake Research and Information, Memphis, TN, United States, Georg Dresen, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany and Thomas Goebel, University of Memphis, Center for Earthquake Research & Information, Memphis, United States
The Three Controls on b-Value Variations: A Study Combining Laboratory Experiments and EGS-Induced Seismicity to Assess Stress, Pore Pressure, and Fault Damage (1957201)
Navin Thapa, University of Memphis, Center for Earthquake Research and Information, Memphis, TN, United States, Georg Dresen, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany and Thomas Goebel, University of Memphis, Center for Earthquake Research & Information, Memphis, United States
Differences in Spatial Localization of Acoustic Emissions During Stick-Slip and Stable-Sliding on Laboratory Fault Gouge (1973925)
Roshan Koirala, University of Memphis, Center for Earthquake Research & Information, Memphis, TN, United States, Navin Thapa, University of Memphis, Center for Earthquake Research and Information, Memphis, TN, United States and Thomas Goebel, University of Memphis, Center for Earthquake Research and Information, Memphis, United States
From barriers to conduits: How true triaxial stresses shape fluid pathways in the crust (1997982)
Thomas M Mitchell1, Ashley Stanton-Yonge1,2, Philip G Meredith3, David Healy4, John Browning5 and Filip Adamus5, (1)University College London, Department of Earth Sciences, London, United Kingdom, (2)University of Padova, Padova, Italy, (3)University College London, Rock and Ice Physics and Seismological Laboratory, London, United Kingdom, (4)University of Leeds, Leeds, United Kingdom, (5)University College London, Earth Sciences, London, United Kingdom
Development of a 1D Mechanical Earth Model and Fracture Analysis at the HFTS-1 Site, Midland Basin (1998043)
Bilge Sasmaz, University of Houston, Houston, TX, United States, Colin M Sayers, University of Houston, Earth and Atmospheric Sciences, Houston, United States and Yingcai Zheng, University of Houston, Houston, United States