Revised estimates of earthquake hazard in New Zealand
DOI:
https://doi.org/10.5459/bnzsee.16.4.259-272Abstract
Earlier estimates of earthquake hazard in New Zealand have been revised by incorporating not only seismological data on known large earthquakes and recent instrumental coverage of small earthquakes but also geological inference from observed ground deformation. The country has been divided into a number of regions, within each of which the density of earthquake occurrence is assumed to be uniform, while rate parameters very from region to region. The effects of earthquakes occurring throughout each region are then obtained by integration. The results are presented in a similar way as in the earlier study. The estimated hazard is slightly reduced for Auckland, Wellington and Christchurch, and significantly increased for Dunedin.
References
Aki, K. 1965: Maximum likelihood estimate of b in the formula log N = a - bM and its confidence limits. Bulletin of the Earthquake Research Institute of Tokyo University 43; 237-239.
Basham, P.W.; Weichert, D.H.; Berry, M.J. 1979: Regional assessment of seismic risk in eastern Canada. Bulletin of the Seismological Society of America 69: 1567-1602.
Cornell, C.A. 1968: Engineering seismic risk analysis. Bulletin of the Seis-mological Society of America 58: 1583-1606
Eiby, G.A. 1968: An annotated list of New Zealand earthquakes. N.Z. Journal of Geology and Geophysics 11: 6 30-647. DOI: https://doi.org/10.1080/00288306.1968.10420275
Gibowicz, S.J. 1974: Frequency-magnitude, depth and time relations for earthquakes in an island arc: North Island, New Zealand. Tectonophysics 23: 283-297. DOI: https://doi.org/10.1016/0040-1951(74)90028-6
Hayes, R.C. 19 36: Intensity distribution in New Zealand earthquakes. N.Z. Journal of Science and Technology XVIII, 508-511.
Housner, G.W. 1981: What we should know about strong earthquakes, past and present. Invited address, IASPEI/IAEE symposium, London, Ontario.
Matuschka, T. 1980: Assessment of seismic hazards in New Zealand. University of Auckland, Dept of Civil Engineering, Report No. 222.
Mulholland, W.M. 1982: Estimation of design earthquake motions for New Zealand. University of Canterbury, Department of Civil Engineering, Report 82/9.
Peak, R. 1980: Estimation of seismic risk for New Zealand. University of Canterbury, Department of Civil Engineering, Report 80/21.
Peek, R.; Berrill, J.B.; Davis R.D.; 1980: A seismicity model for New Zealand. Bulletin of the N.Z. National Society for Earthquake Engineering 13: 355-364.
Smith, W.D., 1976: Statistical estimates of the likelihood of earthquake shaking throughout New Zealand. Bulletin of the N.Z. National Society for Earthquake Engineering 9: 213-221.
Smith, W.D. 1978a: Spatial distribution of felt intensities for New Zealand earthquakes. N.Z. Journal of Geology and Geophysics 21: 293-311. DOI: https://doi.org/10.1080/00288306.1978.10424059
Smith, W.D. 1978b: Earthquake risk in New Zealand: statistical estimates. N.Z. Journal of Geology and Geophysics 21: 313-327. DOI: https://doi.org/10.1080/00288306.1978.10424060
Smith, W.D. 1981: The b-value as an earthquake precursor. Nature 289: 136-139. DOI: https://doi.org/10.1038/289136a0
Smith, W.D. 1902: Pitfalls in the estimation of seismic hazard, Bulletin of the N.Z. National Society for Earthquake Engineering 15: 77-81.
