Index Geophysics

en-US Seismic hazard of the Canterbury region, New Zealand

en-US We present a new probabilistic seismic hazard model for the Canterbury region, the model superseding the earlier model of Stirling et al. (1999, 2001). The updated model incorporates new onshore and offshore fault data, new seismicity data, new methods for the earthquake source parameterisation of both datasets, and new methods for estimation of the expected levels of Modified Mercalli Intensity (MMI) across the region. While the overall regional pattern of estimated hazard has not changed since the earlier seismic hazard model, there have been slight reductions in hazard in some areas (western Canterbury Plains and eastern Southern Alps), coupled with significant increases in hazard in one area (immediately northeast of Kaikoura). The changes to estimated acceleration for the new versus older model serve to show the extent that major changes to a multidisciplinary source model may impact the final estimates of hazard, while the new MMI estimates show the added impact of a new methodology for calculating MMI hazard.

Stirling, Mark

Gerstenberger, Matthew

Litchfield, Nicola

McVerry, Graeme

Smith, Warwick

Pettinga, Jarg

Barnes, Philip

en-US New Zealand Society for Earthquake Engineering

2008-06-30

info:eu-repo/semantics/article

info:eu-repo/semantics/publishedVersion

en-US Article

application/pdf

https://bulletin.nzsee.org.nz/index.php/bnzsee/article/view/325

10.5459/bnzsee.41.2.51-67

en-US Bulletin of the New Zealand Society for Earthquake Engineering; Vol 41 No 2 (2008); 51-67

2324-1543

1174-9857

eng

https://bulletin.nzsee.org.nz/index.php/bnzsee/article/view/325/311

en-US Copyright (c) 2008 Mark Stirling, Matthew Gerstenberger, Nicola Litchfield, Graeme McVerry, Warwick Smith, Jarg Pettinga, Philip Barnes

en-US https://creativecommons.org/licenses/by/4.0