T43B:
Interplay Between Seismic and Aseismic Slip: Implications for Fault Physics III


Submit an Abstract to this Session


Session ID#: 57014

Session Description:
Faults at tectonic boundaries accommodate plate motion through an array of seismic and aseismic modes of deformation. Even within these categories, there are important differences among event slip characteristics. For example, earthquakes exhibit variations in their frequency content and tsunamigenic potential. Aseismic slip transients are often, but not always, accompanied by tectonic tremor, and there remains much to be understood about the relationship between aseismic transients and earthquake nucleation. We invite contributions from observational, experimental, geological and theoretical studies that explore the variations in and interplay among seismic and aseismic slip phenomena in various tectonic settings, including the following questions: (1) Are different slip behaviors well separated in space, or can the same fault areas experience different failure modes? (2) Is there a systematic spatial or temporal relation between different slip types? (3) What are the physical mechanisms that govern this complex behavior?
Primary Convener:  Valere Lambert, California Institute of Technology, Seismological Laboratory, Pasadena, United States
Conveners:  Kathryn Materna, United States Geological Survey, Moffett Field, United States, Tomoaki Nishikawa, Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan and Yohei Hamada, JAMSTEC, Kochi Institute for Core Sample Research, Nankoku, Japan
Primary Liaison:  Valere Lambert, California Institute of Technology, Seismological Laboratory, Pasadena, United States
Chairs:  Kathryn Materna, United States Geological Survey, Moffett Field, United States, Tomoaki Nishikawa, Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan, Yohei Hamada, JAMSTEC, Kochi Institute for Core Sample Research, Nankoku, Japan and Valere Lambert, California Institute of Technology, Seismological Laboratory, Pasadena, United States
OSPA Liaison:  Jessica C Hawthorne, University of Oxford, Department of Earth Sciences, Oxford, United Kingdom
Co-Organized with:
Tectonophysics, and Seismology

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

Proposed Co-Organized Session with:
  • G - Geodesy
  • S - Seismology
Index Terms:

1242 Seismic cycle related deformations [GEODESY AND GRAVITY]
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:

Spatially complementary tectonic earthquake swarms on a transform plate boundary in North Iceland (Invited) (407169)
Eleonora Rivalta1, Luigi Passarelli2, Sigurjon Jonsson3, Steinunn S Jakobsdottir4,5, Martin Hensch6, Sabrina Metzger2, Fabio Corbi4,7 and Torsten Dahm2, (1)GFZ German Research Centre for Geosciences, Potsdam, Germany, (2)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, (3)King Abdullah University of Science and Technology, Thuwal, Saudi Arabia, (4)Deutsches GeoForschungsZentrum GFZ, Potsdam, Germany, (5)Icelandic Met Office, Reykjavík, Iceland, (6)Seismological Survey of Southwest Germany, Freiburg, Germany, (7)Università Roma Tre, Dip. Scienze, Roma, Italy
Episodic creep triggering seismic slip at the Blanco Transform Fault, Blanco Ridge segment, NE Pacific (458760)
Vaclav Matej Kuna, Oregon State University, Corvallis, OR, United States, John Nabelek, Oregon State University, CEOAS, Corvallis, United States and Jochen Braunmiller, University of South Florida Tampa, School of Geosciences, Tampa, FL, United States
Earthquake nucleation and fault slip complexity in the lower crust of central Alaska (Invited) (388794)
Carl Tape1, Stephen G Holtkamp2, Vipul Silwal3, Jessica Hawthorne4, Yoshihiro Kaneko5, Jean-Paul Ampuero6, Chen Ji7, Natalia A Ruppert8, Kyle Smith9 and Michael Edwin West8, (1)University of Alaska Fairbanks, Geophysical Institute, Fairbanks, United States, (2)University of Alaska Fairbanks, Alaska Earthquake Center, Fairbanks, AK, United States, (3)University of Alaska Fairbanks, Geophysical Institute and Department of Geosciences, Fairbanks, AK, United States, (4)University of Oxford, Oxford, United Kingdom, (5)Kyoto University, Department of Geophysics, Kyoto, Japan, (6)Géoazur - Université Nice Sophia Antipolis, Valbonne, France, (7)University of California Santa Barbara, Santa Barbara, CA, United States, (8)Univ Alaska Fairbanks, Fairbanks, AK, United States, (9)Academia Sinica, Institute of Earth Sciences, Taipei, Taiwan
A search for longer-duration low frequency earthquakes in tremor near Parkfield, CA (422214)
Jessica C Hawthorne, University of Oxford, Department of Earth Sciences, Oxford, United Kingdom
The geodetic signature of slow slip events in the roots of the San Andreas Fault Parkfield segment (Invited) (374441)
Baptiste Rousset, Université Grenoble Alpes, Institut des Sciences de la Terre, Grenoble, France, Roland Burgmann, University of California Berkeley, Earth and Planetary Science, Berkeley, United States and Michel Campillo, ISTerre Institute of Earth Sciences, CNRS, Université Grenoble Alpes, Saint Martin d'Hères, France
Exploring the Possibility of Dynamic Rupture Through the Creeping Section of the San Andreas Fault in a Simplified 2D Model (417804)
Oliver Stephenson and Nadia Lapusta, California Institute of Technology, Pasadena, United States
Dynamic rupture modeling on the Hayward Fault, northern California – estimating coseismic and postseismic hazards of partially creeping faults (457116)
Julian Lozos, California State University Northridge, Northridge, CA, United States and Gareth Funning, University of California Riverside, Department of Earth and Planetary Sciences, Riverside, CA, United States
Slip instability and aseismic slip under multiple length scales of frictional heterogeneity (368187)
Sohom Ray, Tufts University, Civil and Environmental Engineering, Medford, MA, United States and Robert C Viesca, Tufts University, Civil and Environmental Engineering, Medford, United States

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