Recent efforts in empirical ground motion modelling in New Zealand

Type of content
Conference Contributions - Other
Publisher's DOI/URI
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Degree name
Publisher
University of Canterbury. Civil and Natural Resources Engineering
Journal Title
Journal ISSN
Volume Title
Language
Date
2014
Authors
Bradley, Brendon
McVerry, G.H.
Gerstenberger, M.C.
Abstract

This presentation discusses recent empirical ground motion modelling efforts in New Zealand. Firstly, the active shallow crustal and subduction interface and slab ground motion prediction equations (GMPEs) which are employed in the 2010 update of the national seismic hazard model (NSHM) are discussed. Other NZ-specific GMPEs developed, but not incorporated in the 2010 update are then discussed, in particular, the active shallow crustal model of Bradley (2010). A brief comparison of the NZ-specific GMPEs with the near-source ground motions recorded in the Canterbury earthquakes is then presented, given that these recordings collectively provide a significant increase in observed strong motions in the NZ catalogue. The ground motion prediction expert elicitation process that was undertaken following the Canterbury earthquakes for active shallow crustal earthquakes is then discussed. Finally, ongoing GMPE-related activities are discussed including: ground motion and metadata database refinement, improved site characterization of strong motion station, and predictions for subduction zone earthquakes.

Description
Citation
Bradley, B.A., McVerry, G.H., Gerstenberger, M.C. (2014) Recent efforts in empirical ground motion modelling in New Zealand. Taipei, Taiwan: Taiwan-Japan-New Zealand Seismic Hazard Assessment Meeting, 19-20 May 2014.
Keywords
New Zealand ground motion prediction, 2010-2011 Christchurch earthquakes, ground motion expert elicitation
Ngā upoko tukutuku/Māori subject headings
ANZSRC fields of research
Fields of Research::37 - Earth sciences::3706 - Geophysics::370609 - Seismology and seismic exploration
Fields of Research::40 - Engineering::4005 - Civil engineering::400506 - Earthquake engineering
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