T13E:
Creep on Faults: Aseismic Slip Throughout the Earthquake Cycle

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Session ID#: 31244

Session Description:
Aseismic slip is a significant mode of moment release on many faults, making spatiotemporal variations in creep an important area of research for understanding fault slip. The many flavors of fault creep include, but are not limited to: interseismic creep, afterslip, and triggered or spontaneous slow slip. Observational, experimental, and modeling studies of creeping fault behavior have recently shed light on the richness of aseismic slip processes in nature, and have revealed that faults display many combinations of seismic and aseismic moment release at different phases of the earthquake cycle. However, much remains to be understood about the frictional and other physical properties responsible for this behavior, and to what extent they are stable over time. In this session, we invite all contributions to the study of fault creep from the interseismic to postseismic phases of the earthquake cycle, including observational, laboratory and modeling investigations.
Primary Convener:  Kathryn Materna, United States Geological Survey, Moffett Field, United States
Conveners:  Eric Ostrom Lindsey, Nanyang Technological University, Earth Observatory of Singapore, Singapore, Singapore and Ruth Harris, USGS, Earthquake Science Center, Moffett Field, United States
Chairs:  Eric Ostrom Lindsey, Earth Observatory of Singapore, Nanyang Technological University, Singapore, Singapore, Ruth Harris, U.S. Geological Survey, Earthquake Science Center, Moffett Field, United States and Kathryn Materna, United States Geological Survey, Moffett Field, United States
OSPA Liaison:  Eric Ostrom Lindsey, Earth Observatory of Singapore, Nanyang Technological University, Singapore, Singapore

Cross-Listed:
  • G - Geodesy
  • S - Seismology
Index Terms:

1242 Seismic cycle related deformations [GEODESY AND GRAVITY]
8118 Dynamics and mechanics of faulting [TECTONOPHYSICS]
8163 Rheology and friction of fault zones [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Postseismic deformation of the 1999 Izmit Earthquake (Turkey) – the longest recorded afterslip on a major continental fault (271904)
Ziyadin Cakir, Istanbul Technical University, Department of Geology, Maslak, Turkey, Gokhan Aslan, Istanbul Technical Univ, Eurasia Earth. Sci. Ins., Istanbul, Turkey, Seda Cetin, YTU, Istanbul, Turkey, Ugur Dogan, YTU, Department of Geomatic Engineering, İstanbul, Turkey, Semih Ergintav, Bogazici University, Kandilli Observatory and Earthquake Research Institute, Department of Geophysics, Istanbul, Turkey, Cecile Lasserre, ISTerre Institute of Earth Sciences, Saint Martin d'Hères, France, François Renard, CNRS, ISTerre, Grenoble, France and Robert E Reilinger, MIT, Cambridge, MA, United States
Aseismic Slip Throughout the Earthquake Cycle in Nicoya Peninsula, Costa Rica (284338)
Nicholas K Voss, University of South Florida Tampa, Tampa, FL, United States, Zhen Liu, NASA Jet Propulsion Laboratory, Pasadena, United States, Tiegan E Hobbs, Georgia Institute of Technology Main Campus, Atlanta, GA, United States, Susan Y Schwartz, University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, CA, United States, Rocco Malservisi, University of South Florida, TAMPA, FL, United States, Timothy H Dixon, University of South Florida, School of Geosciences, Tampa, United States and Marino Protti, Observatorio Vulcanológico y Sismológico de Costa Rica, Heredia, Costa Rica
Seismic and Aseismic Slip on the Cascadia Megathrust (Invited) (230283)
Sylvain Gaetan, Robert, Marcel Michel, University of Cambridge, Department of Earth Sciences, Cambridge, UNITED KINGDOM, Adriano Gualandi, California Institute of Technology, Geological and Planetary Sciences, Pasadena, CA, United States and Jean-Philippe Avouac, California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, United States
Mechanisms of unsteady shallow creep on major crustal faults (260792)
Junle Jiang, Scripps Institution of Oceanography, Institute of Geophysics and Planetary Physics, La Jolla, CA, United States and Yuri A Fialko, University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States
Interseismic Coupling on the Quito Fault System in Ecuador Using New GPS and InSAR Data and Its Implication on Seismic Hazard Assessment. (283331)
Judith Mariniere1, Johann Champenois2, Jean Mathieu Nocquet3, Céline M. Beauval1, Laurence Audin4, Stéphane Baize5, Alexandra Alvarado6, Hugo A Yepes7 and Hervé Jomard8, (1)ISTerre Institute of Earth Sciences, Saint Martin d'Hères, France, (2)IRSN Institut de Radioprotection et de Sûreté Nucléaire, Fontenay aux Roses, France, (3)Institut de Recherche pour le Développement - IRD, Valbonne, France, (4)IRD, CNRS, Université Grenoble Alpes, ISTerre, Grenoble, France, (5)IRSN Institut de Radioprotection et de Sûreté Nucléaire, Fontenay Aux Roses Cedex, France, (6)Instituto Geofísico de la Escuela Politécnica Nacional, Quito, Ecuador, (7)Escuela Politecnica Nacional, Quito, Ecuador, (8)IRSN, Bureau d'évaluation des risques sismiques pour la sûreté des installations, Fontenay Aux Roses Cedex, France
Spatial and temporal patterns of fault creep across an active salt system, Canyonlands National Park, Utah (285253)
Katherine Kravitz, University of Colorado Boulder, Boulder, CO, United States, Karl J Mueller, University of Colorado Boulder, Geological Sciences, Boulder, CO, United States, Masato Furuya, Hokkaido University, Department of Earth and Planetary Sciences, Earth and Planetary Dynamics, Sapporo, Japan and Kristy French Tiampo, University of Colorado Boulder, Cooperative Institute for Research in Environmental Sciences and Dept. of Geological Sciences, Boulder, United States
Controls of repeating earthquakes’ location from a- and b- values imaging (Invited) (219063)
Kate Huihsuan Chen and Masashi Kawamura, Department of Earth Sciences, National Taiwan Normal University, Taipei, Taiwan

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