S13E:
Multifault, Multisegment Ruptures in Complex Tectonic Regimes II

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Session ID#: 32751

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:

Seismic Hazard Analysis on a Complex, Interconnected Fault Network (Invited) (206781)
Morgan T Page, USGS Pasadena Field Office, Pasadena, CA, United States, Edward H Field, USGS, Denver, CO, United States and Kevin R Milner, University of Southern California, Los Angeles, CA, United States
Are Physics-Based Simulators Ready for Prime Time? Comparisons of RSQSim with UCERF3 and Observations. (283113)
Kevin R Milner1, Bruce E Shaw2, Jacquelyn J Gilchrist1 and Thomas H Jordan3, (1)University of Southern California, Los Angeles, CA, United States, (2)Columbia Univ, Palisades, NY, United States, (3)University of Southern California, Los Angeles, United States
Multi-Fault Rupture Scenarios in the Brawley Seismic Zone (296109)
Christodoulos Kyriakopoulos, University of California, Riverside, Department of Earth and Planetary Sciences, Riverside, CA, United States, David Douglas Oglesby, University of California, Riverside, Department of Earth and Planetary Sciences, Riverside, United States, Thomas K Rockwell, San Diego State University, Department of Geological Sciences, San Diego, CA, United States, Aron J Meltzner, Nanyang Technological University, Earth Observatory of Singapore, Singapore, Singapore and Michael Barall, Invisible Software, San Jose, CA, United States
Large earthquake rates from geologic, geodetic, and seismological perspectives (222234)
David D Jackson, University of California Los Angeles, Earth, Planetary, and Space Science, Los Angeles, CA, United States
Characterize kinematic rupture history of large earthquakes with Multiple Haskell sources (259873)
Zhe Jia, California Institute of Technology, Pasadena, United States and Zhongwen Zhan, CalTech Seismological Laboratory, Pasadena, CA, United States
Breaking barriers and halting rupture: the 2016 Amatrice-Visso-Castelluccio earthquake sequence, central Italy (Invited) (238701)
Laura C Gregory1, Richard J Walters2, Luke N J Wedmore1, Timothy J Craig3, Kenneth J W McCaffrey4, Max W Wilkinson5, Franz Livio6, Alessandro Michetti7, Huw Goodall1, Zhenhong Li8, Jiajun Chen9 and Paolo Marco De Martini10, (1)University of Leeds, Leeds, LS2, United Kingdom, (2)Durham University, COMET, Department of Earth Sciences, Durham, United Kingdom, (3)University of Leeds, COMET, School of Earth and Environment, Leeds, United Kingdom, (4)University of Durham, Department of Earth Sciences, Durham, United Kingdom, (5)Geospatial Research Ltd., Department of Earth Sciences, University of Durham, Durham, United Kingdom, (6)Universita dell'Insubria, Como, Italy, (7)University of Insubria, Department of Sciences and High Technology, Como, Italy, (8)Newcastle University, COMET, School of Engineering, Tyne and Wear, United Kingdom, (9)Newcastle University, COMET, School of Engineering, Newcastle Upon Tyne, United Kingdom, (10)INGV National Institute of Geophysics and Volcanology, Rome, Italy
The 2016-2017 central Italy coseismic surface ruptures and their meaning with respect to foreseen active fault systems segmentation (269389)
Paolo Marco De Martini1, Stefano Pucci2, Fabio Villani3, Riccardo Civico1, Luca Del Rio4, Francesca R Cinti1 and Daniela Pantosti3, (1)Istituto Nazionale di Geofisica e Vulcanologia, Palermo, Italy, (2)Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy, (3)Istituto Nazionale di Geofisica e Vulcanologia, Roma, Italy, (4)Università degli Studi di Roma "La Sapienza", Dipartimento di Scienze della Terra, Roma, Italy

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