A seismicity model for New Zealand

  • R. Peek University of Canterbury, Christchurch, New Zealand
  • J. B. Berrill University of Canterbury, Christchurch, New Zealand
  • R. O. Davis University of Canterbury, Christchurch, New Zealand


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.


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How to Cite
Peek, R., Berrill, J. B., & Davis, R. O. (1980). A seismicity model for New Zealand. Bulletin of the New Zealand Society for Earthquake Engineering, 13(4), 355-364. https://doi.org/10.5459/bnzsee.13.4.355-364

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