S41C:
Advances in Understanding of Tremor, Slow Slip, and Other Slow Earthquake Phenomena II

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Session ID#: 17810

Session Description:
Slow earthquakes encompass a variety of behaviors including tectonic tremor, very low-frequency earthquakes, and aseismic slow slip events (SSEs). At times, these behaviors are coincident, while at other times they are observed separately. Slow earthquakes may increase stress loading on the seismogenic zone and hold clues to a more thorough understanding of regional seismic cycles. Studies have indicated slow earthquakes to be a potential precursor of megathrust earthquakes, but the necessary linkage remains unclear. Additionally, up-dip transitional zones showing evidence of slow earthquakes can rupture coseismically, producing larger tsunamis and earthquakes than previously expected.  This session aims to provide an understanding of slow slip and associated seismic phenomena, and their possible connection to large damaging earthquakes. We welcome abstracts that cover seismological, geodetic, and geological observations, seismicity catalog statistics, laboratory experiments, and theoretical modeling.
Primary Convener:  Abhijit Ghosh, University of California Riverside, Riverside, CA, United States
Conveners:  Kevin Chao, Northwestern University, Northwestern Institute on Complex Systems, Evanston, IL, United States, William Benjamin Frank, Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, Cambridge, MA, United States and Brent Delbridge, Berkeley Seismological Lab, Berkeley, CA, United States
Chairs:  Abhijit Ghosh, University of California Riverside, Riverside, CA, United States, Brent Delbridge, Berkeley Seismological Lab, Berkeley, CA, United States, William Benjamin Frank, Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, Cambridge, MA, United States and Kevin Chao, Northwestern University, Northwestern Institute on Complex Systems, Evanston, IL, United States
OSPA Liaison:  Kevin Chao, Northwestern University, Northwestern Institute on Complex Systems, Evanston, IL, United States

Cross-Listed:
  • G - Geodesy
  • T - Tectonophysics
Index Terms:

1207 Transient deformation [GEODESY AND GRAVITY]
7223 Earthquake interaction, forecasting, and prediction [SEISMOLOGY]
7230 Seismicity and tectonics [SEISMOLOGY]
8118 Dynamics and mechanics of faulting [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Slow Slip in the Alaska Subduction Zone and the Long-term Slip Budget on the Megathrust (Invited) (125755)
Jeffrey Todd Freymueller, Michigan State University, Earth and Environmental Sciences, East Lansing, MI, United States, Shanshan Li, University of Alaska Fairbanks, Fairbanks, AK, United States, Yuning Fu, Bowling Green State University, School of Earth, Environment and Society, Bowling Green, United States and Robert McCaffrey, Portland State University, Portland, OR, United States
Aleutian Array of Arrays (A-cubed) to probe a broad spectrum of fault slip under the Aleutian Islands (139897)
Abhijit Ghosh, University of California Riverside, Riverside, CA, United States and Bo LI, Ludwig Maximilians University of Munich, Munich, Germany
A search for slow earthquakes in Interior Alaska (189641)
Stephen G Holtkamp, University of Alaska Fairbanks, Alaska Earthquake Center, Fairbanks, AK, United States
A Mechanical Model for Decrease in Coupling Prior to the 2011 M9 Tohoku Earthquake (132727)
Andreas P Mavrommatis1, Paul Segall1 and Kaj M Johnson2, (1)Stanford University, Geophysics, Stanford, CA, United States, (2)Indiana University, Department of Earth and Atmospheric Sciences, Bloomington, United States
Slip-behavior transitions of a heterogeneous linear fault (137127)
Suguru Yabe, University of Tokyo, Bunkyo-ku, Japan and Satoshi Ide, The University of Tokyo, Department of Earth and Planetary Science, Bunkyo-ku, Japan
Micro low-frequency tremor near the Japan Trench before the Tohoku-Oki earthquake (167542)
Satoshi Katakami, Graduate School of Science, Kyoto University, Kyoto, Japan, Yoshihiro Ito, Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan, Kazuaki Ohta, National Research Institute for Earth Science and Disaster Resilience, Tsukuba, Japan, Ryota Hino, Tohoku University, Sendai, Japan, Syuichi Suzuki, Tohoku University, Graduate School of Science, Sendai, Japan and Masanao Shinohara, NIED, ERI, The University of Tokyo, Tsukuba, Japan
Distribution of shallow very low frequency earthquakes in the eastern Nankai trough influenced by a subducted oceanic ridge: Results from cluster analysis applied to ocean bottom seismographs (172165)
Akiko Toh, Institute of Earth Sciences Academia Sinica, Taipei, Taiwan, Koichiro Obana, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan and Eiichiro Araki, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Research Institute for Marine Geodynamics, Yokosuka, Japan
Tectonic tremor activity associated with teleseismic and nearby earthquakes (199288)
Kevin Chao, Northwestern University, Northwestern Institute on Complex Systems, Evanston, IL, United States, Kazushige Obara, The University of Tokyo, Earthquake Research Institute, Tokyo, Japan, Zhigang Peng, Georgia Institute of Technology Main Campus, Atlanta, GA, United States, Hsin-Chieh Pu, Central Weather Bureau, Taiwan, Taipei, Taiwan, William Benjamin Frank, Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, Cambridge, MA, United States, German A Prieto, Massachusetts Institute of Technology, Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States, Aaron Wech, U.S. Geological Survey, Alaska Volcano Observatory, Anchorage, United States, Ya-Ju Hsu, Institute of Earth Sciences, Academia Sinica, Taipei, Taiwan, Chunquan Yu, Southern University of Science and Technology, Department of Earth and Space Sciences, Shenzhen, China, Suzan van der Lee, Northwestern University, Evanston, IL, United States and Daniel W Apley, Northwestern University, Dept. of Industrial Engineering and Management Sciences, Evanston, IL, United States

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