S11B:
Multifault, Multisegment Ruptures in Complex Tectonic Regimes I Posters

Submit an Abstract to this Session



Session ID#: 25609

Session Description:
The Mw7.8 2016 Kaikoura earthquake in New Zealand joins a suite of recent large earthquakes in which the complexity of rupture has been revealed by multiple datasets, including geodesy, seismology, and earthquake geology. These earthquakes challenge conventional assumptions about the degree to which earthquake ruptures are controlled by fault segmentation. The Kaikoura event was also notable for its widespread triggering of slow slip, involvement of the plate interface, tsunami generation and extensive landscape impacts. One year on from the earthquake, various datasets, and their integration, have much to offer in terms of understanding large earthquakes in regions of complex tectonics and how multi-fault ruptures are considered in seismic hazard assessment. In this session, we invite contributions covering all aspects of multi-fault ruptures including but not limited to studies of clustering and triggering, source processes, fault surface rupture and landscape impact, post-seismic deformation, and statistical characterization of associated sequences.
Primary Convener:  Ian J Hamling, GNS Science, Lower Hutt, New Zealand
Conveners:  Kathryn Clark1, Gavin P Hayes2 and Bill Fry1, (1)GNS Science, Lower Hutt, New Zealand(2)USGS National Earthquake Information Center, Golden, CO, United States
Chairs:  Gavin P Hayes1, Kathryn Clark2 and Bill Fry2, (1)USGS National Earthquake Information Center, Golden, CO, United States(2)GNS Science, Lower Hutt, New Zealand
OSPA Liaison:  Bill Fry, GNS Science, Lower Hutt, New Zealand
Co-Organized with:
Seismology, and Tectonophysics

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

1209 Tectonic deformation [GEODESY AND GRAVITY]
7215 Earthquake source observations [SEISMOLOGY]
7230 Seismicity and tectonics [SEISMOLOGY]
8111 Continental tectonics: strike-slip and transform [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Earthquake bursts and fault branching: lessons from the Carmel fault branch (CFB) of the Dead Sea Transform (DST) (268099)
Amotz Agnon1, Thomas K Rockwell2, Seth Stein3 and Kate Raphael1, (1)Hebrew University, Institute of Earth Sciences, Jerusalem, Israel, (2)San Diego State University, Department of Geological Sciences, San Diego, CA, United States, (3)Northwestern University, Earth and Planetary Sciences, Evanston, IL, United States
Tectonic Deformation Pattern along the Longmen Shan Fault Zone in Eastern Tibet: Insights from Focal Mechanisms of the Wenchuan and Lushan Earthquake Sequences, Southwestern China (271576)
Guixi Yi1, Amaury Vallage2, Yann Klinger3, Feng Long1 and Siwei Wang1, (1)Sichuan Earthquake Agency, Chengdu, China, (2)Institut de Physique du Globe de Paris, Paris, France, (3)Université de Paris Cité, Institut de Physique du Globe de Paris, CNRS, Paris, France
High-precision relocation for aftershocks of the 2016 ML 5.8 Gyeongju earthquake in South Korea: Stress partitioning controlled by complex fault systems (231366)
Jeong-Ung Woo1, Junkee Rhie2, Tae-Seob Kang3, Seongryong Kim1, Gyeongdon Chai2 and Eunbyeol Cho1, (1)Seoul National University, School of Earth and Environmental Sciences, Seoul, Korea, Republic of (South), (2)Seoul National University, School of Earth and Environmental Sciences, Seoul, South Korea, (3)Pukyong National University, Division of Earth Environmental System Science, Busan, South Korea
Multiple geophysical observations indicate possible splay fault activation during the 2006 Java Tsunami earthquake (222928)
Dan Bassett, GNS Science, Lower Hutt, New Zealand, Wenyuan Fan, Scripps Institution of Oceanography, La Jolla, United States; Woods Hole Oceanographic Institution, Woods Hole, MA, United States, Marine Denolle, Harvard University, Department of Earth and Planetary Sciences, Cambridge, United States, Peter M Shearer, Univ California San Diego, La Jolla, United States, Chen Ji, Earth Research Institute, Earth Science, Santa Barbara, CA, United States and Junle Jiang, Institute of Geophysics and Planetary Physics, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, United States
Lisbon 1755, a multiple-rupture earthquake (217758)
Joao F B D Fonseca, IST, University of LIsbon, Lisbon, Portugal
23 October 2011 (Mw=7.2) Van Earthquake (Turkey): Revised Coseismic and Postseismic Models from New GPS Observations (239236)
Ugur Dogan1, Deniz Oz Demir2, Ziyadin Cakir3, Semih Ergintav4, Seda Cetin2, Alpay Ozdemir1 and Robert E Reilinger5, (1)Yıldız Technical University, Department of Geomatic Engineering, Istanbul, Turkey, (2)Yildiz Technical University, Geomatic, Istanbul, Turkey, (3)Istanbul Technical University, Department of Geology, Maslak, Turkey, (4)Bogazici University, Kandilli Observatory and Earthquake Research Institute, Department of Geophysics, Istanbul, Turkey, (5)MIT, Cambridge, MA, United States
Conditional Probabilities of Large Earthquake Sequences in California from the Physics-based Rupture Simulator RSQSim (244568)
Jacquelyn J Gilchrist1, Thomas H Jordan2, Bruce E Shaw3, Kevin R Milner1, Keith B Richards-Dinger4 and James H Dieterich4, (1)University of Southern California, Los Angeles, CA, United States, (2)Southern California Earthquake Center, Los Angeles, CA, United States, (3)Columbia Univ, Palisades, NY, United States, (4)UC Riverside, Riverside, CA, United States
Determining on-fault magnitude distributions for a connected, multi-fault system (246387)
Eric L Geist, USGS, Menlo Park, CA, United States and Tom Parsons, U.S. Geological Survey, Menlo Park, CA, United States
Characterization of Aftershock Sequences from Large Strike-Slip Earthquakes Along Geometrically Complex Faults (277043)
Emily Sexton, University of Oregon, Eugene, OR, United States, Amanda Thomas, University of Oregon, Department of Earth Sciences, Eugene, United States and Brent Delbridge, Berkeley Seismological Lab, Berkeley, CA, United States
Source process of the MW7.8 2016 Kaikoura earthquake in New Zealand and the characteristics of the near-fault strong ground motion (216423)
Lingyuan Meng1, Yang Zang2, Longquan Zhou2 and Yanyan Han2, (1)USGS, Menlo Park, CA, United States, (2)China Earthquake Networks Center, Beijing, China
Coseismic Stress Changes of the 2016 Mw 7.8 Kaikoura, New Zealand, Earthquake and Its Implication for Seismic Hazard Assessment (234207)
Bin Shan1, Chengli LIU2 and Xiong Xiong1, (1)China University of Geosciences, Wuhan, China, (2)China University of Geosciences, Wuhan, Wuhan, China
The 2016 M7.8 Kaikōura earthquake revealed by multiple seismic wavefield simulations: slow rupture propagation on a geometrically complex fault network (248801)
Caroline Francois-Holden1, Yoshihiro Kaneko2, Ian J Hamling1, Elisabetta D'Anastasio3 and Bill Fry1, (1)GNS Science, Lower Hutt, New Zealand, (2)Kyoto University, Department of Geophysics, Kyoto, Japan, (3)GNS Science Te Pῡ Ao, Wellington, New Zealand
Finite Element Simulations of Kaikoura, NZ Earthquake using DInSAR and High-Resolution DSMs (277867)
Magali Barba-Sevilla1, Michael J. Willis1, Kristy French Tiampo2, Margaret T Glasscoe3, Marin Kristen Clark4, Dimitrios Zekkos5, Tim A Stahl6 and Christopher Massey7, (1)Cooperative Institute for Research in Environmental Sciences, Department of Geological Sciences, Boulder, CO, United States, (2)University of Colorado Boulder, Cooperative Institute for Research in Environmental Sciences and Dept. of Geological Sciences, Boulder, United States, (3)University of Colorado at Boulder, Boulder, United States, (4)University of Michigan Ann Arbor, Department of Earth & Environmental Sciences, Ann Arbor, MI, United States, (5)University of Michigan, Ann Arbor, MI, United States, (6)University of Canterbury, School of Earth and Environment, Christchurch, New Zealand, (7)Earth Sciences New Zealand, Lower Hutt, New Zealand
Revealing the Rupture Complexity of the 2016 Mw 7.8 Kaikoura, New Zealand Earthquake with the Slowness-calibrated Back-projection. (257726)
Lingsen Meng, University of California Los Angeles, Los Angeles, CA, United States, Ailin Zhang, University of California Los Angeles, Dept. of Earth, Planetary, and Space Sciences., Los Angeles, CA, United States and Lihua Fang, Institute of Geophysics, China Earthquake Administration, Beijing, China
The 2016 Kaikōura earthquake: Simultaneous rupture of the subduction interface and overlying faults (268235)
Shengji Wei1,2, Teng Wang2, Xuhua Shi3, Qiang Qiu4, Linlin Li1, Dongju Peng5, Ray James Weldon6 and Sylvain Barbot7, (1)Nanyang Technological University, Earth Observatory of Singapore, Singapore, Singapore, (2)Earth Observatory of Singapore, Nanyang Technological University, Singapore, Singapore, (3)Zhejiang University, School of Earth Sciences, Hangzhou, China, (4)University of Leeds, Leeds, United Kingdom, (5)Asian School of Environment, Nanyang Technological University, Singapore, Singapore, (6)University of Oregon, Department of Earth Sciences, Eugene, United States, (7)University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States
Large-scale fault interactions at the termination of a subduction margin (249569)
Vasiliki Mouslopoulou1, Andy Nicol Prof2, Marcos Moreno1, Onno Oncken1, John Begg3 and Sofia-Katerina Kufner1, (1)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, (2)University of Canterbury, Geohazards & Tectonics, Christchurch, New Zealand, (3)GNS Science, Lower Hutt, New Zealand

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