Microzoning effects on damage in two major New Zealand earthquakes

  • D. J. Dowrick GNS Science, Lower Hutt, New Zealand
  • D. A. Rhoades GNS Science, Lower Hutt, New Zealand
  • P. N. Davenport GNS Science, Lower Hutt, New Zealand


In a recent study the present authors examined the damage ratios for houses and household contents in the Inangahua, New Zealand, earthquake for intensities MM7-MM10, as affected by microzoning and structural types. The present study modestly revises this work, and extends it to include the localities of Nelson (MM6.4) and Murchison (MM8.1). Four ground classes and two foundation types, i.e. unbraced piles and concrete perimeter wall foundations were considered, and also number of storeys and wall cladding. Some complexities and difficulties of reliable microzoning are revealed and discussed.


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How to Cite
Dowrick, D. J., Rhoades, D. A., & Davenport, P. N. (2005). Microzoning effects on damage in two major New Zealand earthquakes. Bulletin of the New Zealand Society for Earthquake Engineering, 38(1), 1-18. https://doi.org/10.5459/bnzsee.38.1.1-18

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