T41E:
Illuminating the Factors That Determine Subduction Megathrust Fault Slip Style I

Session ID#: 4933

Thursday, 18 December 2014: 8:00 AM-10:00 AM
304 (Moscone_South)
Chairs:  Ake Fagereng, Cardiff University, Department of Earth and Environmental Sciences, Cardiff, United Kingdom and Kohtaro Ujiie, University of Tsukuba, Tsukuba, Japan
Primary Convener:  Ake Fagereng, Cardiff University, Department of Earth and Environmental Sciences, Cardiff, United Kingdom; Cardiff University, Cardiff, CF24, United Kingdom
Co-conveners:  Matt Ikari, University of Bremen, MARUM – Center for Marine Environmental Sciences, Bremen, Germany, Kohtaro Ujiie, University of Tsukuba, Tsukuba, Japan and Laura M Wallace, University of Texas at Austin, Institute for Geophysics, Austin, United States
OSPA Liaison:  Ake Fagereng, Cardiff University, Department of Earth and Environmental Sciences, Cardiff, United Kingdom
Co-Sponsor(s):
  • G - Geodesy
  • MR - Mineral and Rock Physics
  • NH - Natural Hazards
  • S - Seismology
Index Terms:

5104 Fracture and flow [PHYSICAL PROPERTIES OF ROCKS]
7209 Earthquake dynamics [SEISMOLOGY]
8163 Rheology and friction of fault zones [TECTONOPHYSICS]
8170 Subduction zone processes [TECTONOPHYSICS]
Virtual Option?: No

Abstracts Submitted to this Session:

T41E-01
Megathrust Properties and Large Earthquake Rupture Processes (Invited) (2509)
Thorne Lay, University of California Santa Cruz, Santa Cruz, United States, Lingling Ye, UC SANTA CRUZ, Santa Cruz, United States and Hiroo Kanamori, California Institute of Technology, Seismological Laboratory, Pasadena, CA, United States
T41E-02
Mechanics of Slip-to-the-Trench and Frontal Prism Deformation for the 2011 Tohoku-oki Earthquake (31739)
Frederick M Chester, Texas A&M University College Station, Department of Geology and Geophysics, College Station, United States and Scientists of IODP Expedition 343/343T
T41E-03
Laboratory-observed frictional slip instabilities in samples of the Tohoku plate boundary megathrust (16305)
Matt Ikari, MARUM - University of Bremen, Bremen, Germany, Yoshihiro Ito, Kyoto University, Disaster Prevention Research Institute, Kyoto, Japan, Kohtaro Ujiie, University of Tsukuba, Tsukuba, Japan and Achim Kopf, University of Bremen, MARUM – Center for Marine Environmental Sciences, Bremen, Germany
T41E-04
Mechanisms Behind Aseismic Slip Pulsing on the Northeast Japan Subduction Zone: Insights from Time-Dependent Modelling of GPS and Repeating Earthquakes (10071)
Jennifer M Weston, Arizona State University, Tempe, AZ, United States and Manoochehr Shirzaei, Virginia Tech, Department of Geosciences, Blacksburg, United States
T41E-05
Coupling, fluids and foreshocks – preparing megathrust ruptures at the Chilean plate boundary (15308)
Onno Oncken1, Marcos Moreno1 and Bernd Schurr2, (1)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, (2)Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, Potsdam, Germany
T41E-06
Aftershock mechanisms from the 2010 Mw 8.8 Maule, Chile earthquake: detailed analysis using full waveform inversion (16021)
Stephen Paul Hicks1, Bruna Chagas2, Andreas Rietbrock1 and Hans Agurto-Detzel3, (1)Karlsruhe Institute of Technology, Geophysical Institute, Karlsruhe, Germany, (2)UFOP-Federal University of Ouro Preto, Department of Physics, Ouro Preto, Brazil, (3)USP University of Sao Paulo, Department of Geophysics, São Paulo, Brazil
T41E-07
Imaging the Locked Zone of the Cascadia Subduction Zone Using Receiver Functions from the Cascadia Initiative (11015)
Helen A Janiszewski1, Geoffrey A Abers2, James B Gaherty1 and Helene Delphine Carton3, (1)Columbia University in the City of New York, Lamont-Doherty Earth Observatory, Palisades, United States, (2)Cornell University, Ithaca, NY, United States, (3)Columbia University in the City of New York, Lamont-Doherty Earth Observatory, Palisades, NY, United States
T41E-08
Investigation of small earthquakes and microseismicity at the down-dip end of the seismogenic zone associated with slow slip events and large subduction earthquakes (29514)
Harmony Colella, Arizona State University, Tempe, AZ, United States and Mike R Brudzinski, Miami University (OH), Department of Geology and Environmental Earth Science, Oxford, United States
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