MR007
From Earthquakes to SSEs, From Nucleation to Arrest, From the Lab to the Field, and In Between
Session ID#: 161661
Session Description:
Earthquake mechanics is still widely debated: Recent seismic events and large geophysical datasets have revealed that what we commonly call earthquakes exhibit a complexity far beyond our current models. This session focuses on experimental, numerical, and field studies providing new details on fault rupture nucleation, acceleration, and arrest from all perspectives and scales. We encourage the presentation of works encompassing novel methods or the combination of different techniques, such as shear-stress or energy-controlled experiments, the combination of deformation experiments and imaging techniques, machine learning, and artificial intelligence applied to experimental and field data. The session will stimulate discussion among communities that study earthquakes and friction in geomaterials. We envision the opportunity for such communities to benefit from one another’s contributions to expand the capability of upscaling observations from the laboratory and numerical simulations, improving our understanding of the spectrum of fault failure behaviors.
Index Terms:
3902 Creep and deformation [MINERAL PHYSICS]
7230 Seismicity and tectonics [SEISMOLOGY]
8004 Dynamics and mechanics of faulting [STRUCTURAL GEOLOGY]
8163 Rheology and friction of fault zones [TECTONOPHYSICS]
Primary Convener: Nicola Tisato, University of Texas at Austin, Austin, TX, United States and Rock Squeezers
Conveners: Carolina Giorgetti, Sapienza University of Rome, Rome, Italy, Federica Paglialunga, Ecole Polytechnique Federale de Lausanne, Lausanne, Switzerland, Brett M Carpenter, University of Oklahoma Norman Campus, School of Geosciences, Norman, OK, United States and Rock Squeezers
Postseismic Relaxation Mechanisms of a Granular Fault: Laboratory Experiment and Numerical Simulation (1061489)
Huanyu Wu1, Qi Zhao1 and Nicola Tisato2, (1)The Hong Kong Polytechnic University, Department of Civil and Environmental Engineering, Kowloon, Hong Kong, (2)The University of Texas at Austin, Jackson School of Geosciences, Department of Geological Sciences, Austin, United States
Extended Finite Element Analysis of Injection-induced Seismicity on a Rate-and-State Fault (1062549)
Navid Hosseini, University of Calgary, Calgary, Alberta, CANADA, Jeffrey alan Priest, University of Calgary, Calgary, AB, Canada and David W S Eaton, University of Calgary, Geoscience, Calgary, AB, Canada
Nucleation processes and foreshocks of slow and fast laboratory earthquakes illuminated with waveform similarity measurements (1070328)
David Chas Bolton, University of Texas at Austin, Austin, TX, United States, Chris Marone, Pennsylvania State University, Department of Geosciences, University Park, United States, Demian M Saffer, University of Texas at Austin, Austin, United States and Daniel T Trugman, University of Texas at Austin, Jackson School of Geosciences, Austin, United States
Aseismic Slip as the Signature of Crustal Fluid Ascent (1071219)
Romain Jolivet, Ecole Normale Supérieure, PSL, CNRS UMR 8538, Laboratoire de Géologie, Département de Géosciences, Paris, France, Dmitry Garagash, Dalhousie University, Department of Civil and Resource Engineering, Halifax, NS, Canada, Alexandre Schubnel, Ecole Normale Supérieure, Laboratoire de Géologie, Paris Cedex 16, France, Harsha Bhat, Ecole Normale Supérieure, PSL, CNRS UMR 8538, Laboratoire de Géologie, Paris, France and Pierre Dublanchet, MINES ParisTech - PSL University, Géophysique, Centre de Géosciences, Paris, France
Link Between Localization Patterns, Frictional Behaviors, and Breakdown Energy within Dense Fault Gouges for Different Grain-Scale Properties (1071971)
Nathalie Casas, Ecole Normale Supérieure Lyon, LGL-TPE, Lyon, France, Guilhem Mollon, INSA Lyon - LaMCoS, Villeurbanne, France and Ali Daouadji, INSA Lyon - GEOMAS, Villeurbanne, France
Microscopic Defect Dynamics of a Brittle-to-Ductile transition (1076498)
Matej Pec1, H O. Ghaffari2, Tushar Mittal3, Ulrich Mok1, Hilary Chang4 and J Brian Evans1, (1)Massachusetts Institute of Technology, Cambridge, MA, United States, (2)Massachusetts Institute of Technology, Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States, (3)Penn State, Earth and Planetary Science, University Park, United States, (4)Massachusetts Institute of Technology, Cambridge, United States
Coda-Based Estimation of Source Parameters of Laboratory Acoustic-Emission Events (1086241)
Tatiana Kartseva1,2, Nikolai M Shapiro1, Andrey Patonin3, Vladimir Smirnov2,4 and Alexander Ponomarev2, (1)Institut des Sciences de la Terre, Université Grenoble Alpes, CNRS (UMR5275), Grenoble, France, (2)Schmidt Institute of Physics of the Earth RAS, Moscow, Russia, (3)CPGR Geophysical observatory "Borok", Borok, Russia, (4)Lomonosov Moscow State University, Moscow, Russia
Records of Shearing in Near-Surface Fault Zone Grains (1092106)
Jhardel Dasent, Scripps Institution of Oceanography, La Jolla, CA, United States, Vanshan Wright, University of California San Diego, Scripps Institution of Oceanography, San Diego, CA, United States, Richard Kilburn, University of California San Diego, Scripps Institution of Oceanography, La Jolla, United States, Katherine M Scharer, U.S. Geologic Survey, Earthquake Science Center, Pasadena, CA, United States and Michael Manga, Univ of California Berkeley, Earth and Planetary Sciences, Berkeley, CA, United States
Moment tensor, fault damage and stiffness variation during fluid injection in laboratory faults (1098242)
Thomas Goebel1, Grzegorz Kwiatek2, Marco Bohnhoff3 and Georg Dresen3, (1)University of Memphis, Memphis, TN, United States, (2)GFZ German Research Centre for Geosciences, Potsdam, Germany, (3)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany
Laboratory Observations Linking Fault Surface Characteristics to the Onset and Evolution of Frictional Sliding and Off-fault Damage (1105956)
Sofia Michail1, Paul Selvadurai1, Sara Beth Leach Cebry2, Patrick Bianchi1, Antonio Felipe Salazar Vásquez1,3, Claudio Madonna4 and Stefan Wiemer1, (1)ETH Zurich, Swiss Seismological Service, Zurich, Switzerland, (2)Cornell University, Ithaca, NY, United States, (3)Eastern Switzerland University of Applied Sciences, School of Architecture, Civil Engineering, Landscape Architecture, Spatial Planning, Rapperswil, Switzerland, (4)ETH Zurich, Department of Earth Sciences, Zurich, Switzerland
Increasing Temperatures Reduces the Frictional Stability of Clay-Bearing Fault Gouges (1107085)
Isabel Ashman, University of Liverpool, Liverpool, United Kingdom, Daniel R Faulkner, University of Liverpool, Department of Earth, Ocean and Ecological Sciences, Liverpool, United Kingdom and Elisabetta Mariani, University of Liverpool, Earth, Ocean and Ecological Sciences, Liverpool, United Kingdom
Invariance of Stress Drop Scaling for Slow Slip Events on Novel Laboratory Fault (1129247)
Will Steinhardt1, Emily E Brodsky2, Sam Dillavou3 and Shmuel Rubinstein3, (1)University of California Santa Cruz, Santa Cruz, CA, United States, (2)University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, CA, United States, (3)Harvard University, Cambridge, MA, United States
The Role of Pore Fluids on Fault Stability at Drained Boundary Conditions (1154455)
Raphael A Affinito1, Clay Wood1, Samson Benjamin Marty2, Chris Marone1,3 and Derek Elsworth4, (1)Pennsylvania State University, Department of Geosciences, University Park, United States, (2)Pennsylvania State University, Department of Geoscience, University Park, United States, (3)Sapienza University of Rome, Dipartimento di Scienze della Terra, Rome, Italy, (4)Pennsylvania State University Main Campus, Energy and Mineral Engineering and Geosciences, EMS Energy Institute, G3, University Park, PA, United States
