MR026
Pre-, co- and post-rupture processes across multiple scales
Session ID#: 79280
Session Description:
The session focuses on the processes preceding, accompanying and following dynamic ruptures. Earthquakes, volcano and landslides ruptures are governed by multiple factors including rock properties, in situ stress and fluid pressure conditions, time-dependent deformation and pre-existing heterogeneities or defects. Geophysical and geological observations across fault systems at multiple scales allow to quantitatively characterize the nucleation and propagation of ruptures and to assess the thermo-hydro-mechanical properties of shear zones. At the laboratory scale, new experiments are able to investigate the 3D microstructure evolution of a deforming rock. Concurrent numerical efforts assist laboratory observations by unraveling the governing physical processes. Our aim is to integrate field, laboratory, and numerical investigations to address the multi-scale deformation mechanisms before, during and after major ruptures.
Co-Organized:
Index Terms:
1207 Transient deformation [GEODESY AND GRAVITY]
3902 Creep and deformation [MINERAL PHYSICS]
4317 Precursors [NATURAL HAZARDS]
8118 Dynamics and mechanics of faulting [TECTONOPHYSICS]
Primary Convener: Sergio Vinciguerra, University of Turin, Earth Sciences, Turin, Italy
Conveners: Francois Renard, University Joseph Fourier Grenoble, Grenboble, France, Wenlu Zhu, University of Maryland College Park, College Park, MD, United States and Roland Burgmann, Univ California Berkeley, Seismological Laboratory, Berkeley, CA, United States
Primary Liaison: Sergio Vinciguerra, University of Turin, Earth Sciences, Turin, Italy
Thermal pressurized gouges record stress states of faults after earthquakes (Invited) (492633)
Li-Wei Kuo, NCU National Central University of Taiwan, Jhongli, Taiwan, Vladimir Luzin, Australian Nuclear Science & Technology Organisation, Bragg Institute, Lucas Heights, Australia, Ping-Chuan Chen, National Taiwan University, Department of Geosciences, Taipei, Taiwan, En-Chao Yeh, National Taiwan Normal Univ., Taipei, Taiwan, Ya-Ju Hsu, Institute of Earth Sciences, Academia Sinica, Taipei, Taiwan, Kou-Fong Ma, National Central University, Earth Sciences, Taoyuan city, Taiwan and Sheng-Rong Song, Natl Taiwan Univ, Taipei, Taiwan
Seismic rupture in the upper mantle: wet or dry? (508231)
Elham Hosseinzadehsabeti, University of Louisiana at Lafayette, Lafayette, LA, United States, Eric C. Ferre, University of Louisiana at Lafayette, School of Geosciences, Lafayette, LA, United States and John W Geissman, University of Texas at Dallas, Department of Geosciences, Richardson, TX, United States
Mechanics of stick-slips along brittle faults (509742)
Ze'ev Reches, University of Oklahoma, Norman, OK, United States, Xiaofeng Chen, Texas A&M University College Station, Geology and Geophysics, College Station, TX, United States and Brett M Carpenter, University of Oklahoma Norman Campus, School of Geosciences, Norman, OK, United States
How do strength anisotropy and heterogeneity control fracture propagation, and corresponding energy budgets and stress-strain evolution? (512657)
Laura Fattaruso1, Michele L Cooke1, Jessica McBeck2, Neelima Kandula3 and Francois Renard4, (1)University of Massachusetts Amherst, Amherst, MA, United States, (2)University of Olso, Amherst, Norway, (3)University of Oslo, Departmenf of Geosciences / PGP, Oslo, Norway, (4)University Joseph Fourier Grenoble, Grenboble, France
Damage indicators and failure prediction in focal mechanism solutions (514758)
Sergio Vinciguerra, University of Turin, Earth Sciences, Turin, Italy, Thomas Ian King, University of Turin, Department of Earth Sciences, Turin, Italy, Luca De Siena, University of Aberdeen, Geology and Petroleum Geology, Aberdeen, United Kingdom and Philip M Benson, University of Portsmouth, Portsmouth, United Kingdom
Serpentinite Slip Localization During Dehydration (521285)
Eric Burdette, Brown University, Providence, RI, United States and Greg Hirth, Brown Univeristy, Department of Earth, Environmental, and Planetary Sciences, Providence, RI, United States
Geophysical Investigation of the Northwestern Valles Caldera, New Mexico (556702)
Hannah Weaver1, Alysha Armstrong2, Charles Babendreier3, Owen Huff4, Qicheng Zeng1, Christina Martinez5, John F Ferguson6, Shari Kelley7 and David E Lumley8, (1)Purdue University, West Lafayette, IN, United States, (2)University of Utah, Department of Geology and Geophysics, Salt Lake City, UT, United States, (3)Texas A&M University College Station, College Station, TX, United States, (4)Colorado School of Mines, Golden, CO, United States, (5)Baylor University, Waco, TX, United States, (6)Univ of Texas - Dallas, Richardson, TX, United States, (7)New Mexico Institute of Mining and Technology, Socorro, NM, United States, (8)University of Texas at Dallas, Geoscience, Richardson, TX, United States
Testing Earthquake Nucleation Models Using Oklahoma Seismicity (597789)
Jack Daniel Rusk1, Katie M Keranen1, Sizhao Wu2 and Gregory Mclaskey2, (1)Cornell University, Earth and Atmospheric Sciences, Ithaca, NY, United States, (2)Cornell University, Civil and Environmental Engineering, Ithaca, NY, United States
Autodetection of microearthquakes in Oklahoma during the Prague 2011 earthquake sequence. (626343)
Diego Aron Lobos1, Katie M Keranen1, Heather M Savage2 and Kristina Okamoto2, (1)Cornell University, Earth and Atmospheric Sciences, Ithaca, NY, United States, (2)University of California Santa Cruz, Santa Cruz, CA, United States
