Probabilistic seismic hazard analysis of peak ground acceleration for major regional New Zealand locations

This paper presents site-specific probabilistic seismic hazard analysis (PSHA) results at 24 locations throughout New Zealand (NZ). Specifically, peak ground acceleration (PGA) curves for two generic soft soil conditions are considered. For specific return periods of interest, disaggregation is used to obtain the percentage contributions various sources hazard, including metrics such as mean earthquake magnitude simplified geotechnical calculations. The analyses utilise concensus models source and ground-motion characterisation, consideration alternative models. therefore represent an appreciable improvement relative science that underpin current loading standards [e.g., 1,2]. Consequently, we advocate use these a scientific basis potential revisions guidance documents characterise via PGA.