Browsing by Subject "Engineering seismology, including basin and site response, seismic hazard and risk"
Now showing items 1-9 of 9
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Analysis of Site-Response Residuals from Empirical Ground-Motion Models to Account for Observed Sedimentary Basin Effects in Wellington, New Zealand
(2024-04-09)Analysis of prediction-observation residuals from the empirical ground motion models (GMMs) used in the 2022 New Zealand National Seismic Hazard Model (NZ NSHM) update indicates a general underprediction of ground motions ... -
Comparing alternative methods to account for shallow site effects in hybrid broadband ground-motion simulations
(2024-04-09)Shallow site effects are usually not explicitly modelled in hybrid broadband ground-motion simulations, and their proper incorporation may be key to improving prediction at soil sites. This paper examines five methods to ... -
Earthquake scaling relations, and testing and evaluation of the New Zealand National Seismic Hazard Model 2022.
(2024-04-09)We summarise two projects that contributed to the development of the New Zealand National Seismic Hazard Model 2022 (NZ NSHM 2022). First, we summarise the development of new magnitude-source area scaling relations for ... -
Nationwide investigation of systematic site effects in New Zealand: Residual analysis of physics-based ground motion simulations
(2024-04-09)This study examines systematic site effects from the prediction residuals of physics-based ground motion simulations using a dataset of small magnitude (3.5 ≤ Mw ≤ 5.0) active shallow crustal earthquakes recorded in New ... -
New Zealand National Seismic Hazard Model Revision 2022: Hazard changes with respect to NZ NSHM 2010
(2024-04-09)Revision of New Zealand National Seismic Hazard Model (NZ NSHM 2022) represents a significant change not only in hazard results but also in terms of methods and processes in comparison to NZ NSHM 2010. The changes span ... -
Post-Earthquake Response: Update on the Improvements to the Rapid Building Assessment Process and Building Management In Emergencies
(2024-04-09)It is vital that New Zealand has both the systems in place and trained personnel ready to respond to earthquakes and other natural disasters. Rapidly assessing the usability of affected buildings and identifying an ... -
Shallow Shear Wave Reflection Surveys in the Wellington CBD
(2024-04-09)Seismic reflection profiles using shear waves provide constraints on the thickness of sediments beneath the Wellington CBD. New shear wave source and acquisition methods were trialled for use in urban environments to ... -
Towards 3D ground motion simulation-based site amplification: a Wellington case study considering multiple basin geometries
(2024-04-09)This paper presents a study on 3D ground motion simulation-based site amplification using the Wellington region of New Zealand as a case study. Several recent models of the Wellington sedimentary basin have been developed ... -
Urban Geophysics and Seismic Hazard Assessment in the Wellington CBD
(2024-04-09)Many of our cities are built on sedimentary basins. Both the depth and shape of the basin will influence, and generally enhance the level of shaking. Our focus is the Wellington CBD, where we use seismic reflection and ...