T41B:
Interplay Between Seismic and Aseismic Slip: Implications for Fault Physics I


Submit an Abstract to this Session


Session ID#: 57002

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:  Tomoaki Nishikawa, Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan, Yohei Hamada, JAMSTEC, Kochi Institute for Core Sample Research, Nankoku, Japan and Kathryn Materna, University of Colorado at Boulder, Boulder, United States
OSPA Liaison:  William Benjamin Frank, University of Southern California, Los Angeles, CA, United States
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:

Very Low Frequency Earthquakes (VLFEs) between episodic tremor and slip (ETS) events in Cascadia (464323)
Allie A Hutchison, University of California Riverside, Earth Sciences, Riverside, United States and Abhijit Ghosh, University of California Riverside, Department of Earth and Planetary Sciences, Riverside, CA, United States
Induced Stresses on the Cascadia Megathrust during ETS Events and Implications for the Triggering of Tremor (417314)
Kelley Hall, University of Washington Seattle Campus, Seattle, WA, United States, David A Schmidt, University of Washington Seattle, Department of Earth and Space Sciences, Seattle, United States and Heidi Houston, University of Washington, Seattle, WA, United States
Low-frequency earthquakes describe the slow slip that drives them (442481)
William Benjamin Frank, University of Southern California, Los Angeles, CA, United States and Emily E Brodsky, University of California Santa Cruz, Department of Earth and Planetary Sciences, Santa Cruz, CA, United States
Event size distribution of shallow tectonic tremor in the Nankai trough (401053)
Masaru Nakano1, Suguru Yabe1, Hiroko Sugioka2 and Satoshi Ide3, (1)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (2)Kobe University, Kobe, Japan, (3)The University of Tokyo, Department of Earth and Planetary Science, Bunkyo-ku, Japan
Frequent activity of shallow tectonic tremors in the southern margin of the 2011 Tohoku-Oki earthquake rupture area (414955)
Kazuaki Ohta1, Yoshihiro Ito2, Shukei Ohyanagi3, Ryota Hino4, Yusaku Ohta5, Ryosuke Azuma4, Masanao Shinohara6, Kimihiro Mochizuki7, Toshinori Sato8 and Yoshio Murai9, (1)National Research Institute for Earth Science and Disaster Resilience, Tsukuba, Japan, (2)Kyoto University, Disaster Prevention Research Institute, Kyoto, Japan, (3)Kyoto University, Graduate School of Science, Kyoto, Japan, (4)Tohoku University, Graduate School of Science, Sendai, Japan, (5)Tohoku University, Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Sendai, Japan, (6)Univ Tokyo, Tokyo, Japan, (7)University of Tokyo, Earthquake Research Institute, Bunkyo-ku, Japan, (8)Faculty Science Chiba Univ, Chiba, Japan, (9)Hokkaido University, Institute of Seismology and Volcanology, Faculty of Science, Sapporo, Japan
What does a tremorgenic rock look like? (433675)
James D Kirkpatrick, McGill University, Earth & Planetary Sciences, Montreal, Canada and Ake Fagereng, Cardiff University, Cardiff, CF24, United Kingdom
Investigate episodic tremor and slow slip variability due to stress variation (382107)
Yingdi Luo, California Institute of Technology, Pasadena, CA, United States and Zhen Liu, NASA Jet Propulsion Laboratory, Pasadena, United States
What are Low-Frequency "Earthquakes"? (457711)
Allan M Rubin, Princeton University, Princeton, NJ, United States and Michael G Bostock, University of British Columbia, Vancouver, BC, Canada

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