S14B:
Multifault, Multisegment Ruptures in Complex Tectonic Regimes III

Submit an Abstract to this Session



Session ID#: 32757

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:  Gavin P Hayes, USGS National Earthquake Information Center, Golden, CO, United States

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:

Dynamics of delayed triggering in multi-segmented foreshock sequence: Evidence from the 2016 Kumamoto, Japan, earthquake (222317)
Hiroki Arai, Scripps Institution of Oceanography, La Jolla, CA, United States, Ryosuke Ando, University of Tokyo, Department of Earth and Planetary Science, Bunkyo-ku, Japan and Yosuke Aoki, Earthquake Research Institute, The University of Tokyo, Tokyo, Japan
Dynamic rupture simulation of the 2017 Mw 7.8 Kaikoura (New Zealand) earthquake: Is spontaneous multi-fault rupture expected? (222291)
Ryosuke Ando, University of Tokyo, Department of Earth and Planetary Science, Bunkyo-ku, Japan and Yoshihiro Kaneko, Kyoto University, Department of Geophysics, Kyoto, Japan
Dynamic rupture simulations of the 2016 Mw7.8 Kaikōura earthquake: a cascading multi-fault event (Invited) (249945)
Thomas Ulrich1, Alice-Agnes Gabriel1, Jean-Paul Ampuero2, Wenbin Xu3 and Guangcai Feng3, (1)Ludwig Maximilian University of Munich, Department of Earth and Environmental Sciences, Munich, Germany, (2)Géoazur - Université Nice Sophia Antipolis, Valbonne, France, (3)Central South University, Changsha, China
What role did the Hikurangi subduction zone play in the M7.8 Kaikoura earthquake? (266171)
Laura M Wallace1,2, Ian J Hamling2, Yoshihiro Kaneko3, Bill Fry2, Kathryn Clark2, Stephen C Bannister2, Susan M Ellis2, Caroline Francois-Holden2, Sigrun Hreinsdottir2 and Christof Mueller2, (1)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (2)GNS Science, Lower Hutt, New Zealand, (3)Kyoto University, Department of Geophysics, Kyoto, Japan
Evidence for Past Multi-Fault Ruptures on the Southern Hikurangi Margin using On- and Off-Fault Paleoseismology and Paleotsunamis: How Anomalous was the 2016 Kaikōura Earthquake? (238264)
Kathryn Clark1, Timothy Little2, Jamie Howarth2, Nicola J Litchfield1 and Russ James Van Dissen1, (1)GNS Science, Lower Hutt, New Zealand, (2)Victoria University of Wellington, School of Geography, Environment and Earth Sciences, Wellington, New Zealand
Rapid modeling of complex multi-fault ruptures with simplistic models from real-time GPS: Perspectives from the 2016 Mw 7.8 Kaikoura earthquake (Invited) (255034)
Brendan Crowell, University of Washington, Department of Earth and Space Sciences, Seattle, United States and Diego Melgar, University of California Berkeley, Berkeley, CA, United States
A multiple fault rupture model of the November 13 2016, M 7.8 Kaikoura earthquake, New Zealand (268767)
Rafael A Benites1, Caroline Francois-Holden1, Robert M Langridge1, Yoshihiro Kaneko2, Bill Fry1, Anna E Kaiser1 and T. Grant Caldwell1, (1)GNS Science, Lower Hutt, New Zealand, (2)Kyoto University, Department of Geophysics, Kyoto, Japan
Insights into the Fault Geometry and Rupture History of the 2016 MW 7.8 Kaikoura, New Zealand, Earthquake (275619)
Mareike Adams, University of California Santa Barbara, Santa Barbara, CA, United States and Chen Ji, Earth Research Institute, Earth Science, Santa Barbara, CA, United States

See more of: Seismology