A seismicity model for New Zealand
Open Access
- 31 December 1980
- journal article
- Published by New Zealand Society for Earthquake Engineering in Bulletin of the New Zealand Society for Earthquake Engineering
- Vol. 13 (4) , 355-364
- https://doi.org/10.5459/bnzsee.13.4.355-364
Abstract
A model for the distribution of shallow earthquake magnitudes in and around New Zealand is presented. The model comprises 9 onshore and 8 offshore regions, selected for their general tectonic homogeneity. For each region, values of the Gutenberg and Richter seismicity parameters a and b are estimated using seismological, geological and tectonic data. Smooth transitions between regions are achieved using concepts from fuzzy set theory. The model is well-suited to seismic risk computations.Keywords
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