Browsing by Author "c8f402de-3fd0-4e17-a8ae-5061b155f714"
Now showing items 1-8 of 8
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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
de la Torre, Chris; Bradley, Brendon; Lee, Robin; Tiwari, Ayushi; Wotherspoon, Liam; Kaiser, Anna (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 ... -
Development and implications of an expanded national earthquake catalogue for New Zealand
Hutchinson, Jesse; Lee, Robin; Bradley, Brendon; Van Houtte, Chris; Kaiser, Anna; Wotherspoon, Liam (2021-04-14)In the last two decades, New Zealand (NZ) has experienced significant earthquakes, including the 2010 M 7.2 Darfield, 2011 M 6.2 Christchurch, and 2016 M 7.8 Kaikōura events. Amongst these large events, tens of thousands ... -
Dynamic Shaking Layer models for large New Zealand earthquakes (M6.5+): from rapid source characterization to landslide and impact forecasting
Kaiser, Anna; Andrews, Jen; Fry, Bill; Horspool, Nick; Lukovic, Biljana; Massey, Chris; Warren-Smith, Emily; Chamberlain, C.; Goded, Tatiana (2024-04-09)GNS Science has developed a new Shaking Layers tool to rapidly deliver near-real time ground shaking maps for New Zealand, available directly through GeoNet. Shaking Layers combines observed strong motion data with ground ... -
GeoNet’s Shaking Layer Tool: Generation of near-real time ground shaking for post-event response
Horspool, Nick; Goded, Tatiana; Kaiser, Anna; Chadwick, Mark; Charlton, Danielle; Houltham, Jeremy; Groom, Josh (2023-04-19)Information on ground shaking following an earthquake is important for many applications from emergency response, engineering assessments, infrastructure management, insurance claim estimation and research. GeoNet, along ... -
Rapid Earthquake Rupture Characterisation for New Zealand Using the FinDer Algorithm
Andrews, Jen; Behr, Yannik; Böse, Maren; Massin, Frédérick; Kaiser, Anna; Fry, Bill; Horspool, Nick (2024-04-09)For large and damaging earthquakes, rupture location and extent are critical inputs for impact forecasts and response decision-making. This information has the potential to significantly improve estimates of ground shaking, ... -
Towards 3D ground motion simulation-based site amplification: a Wellington case study considering multiple basin geometries
Lee, Robin; Bradley, Brendon; Hill, Matthew; de la Torre, Christopher; Kaiser, Anna; Wotherspoon, Liam (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 ... -
Using 3D geological models to create maps of estimated Vs30 and site period
Hill, Matthew; Kaiser, Anna; Wotherspoon, Liam; Manea, Elena (2023-04-19)The 30-m time-averaged shear-wave velocity (Vs30) and the fundamental site period (T0) are useful parameters for understanding site conditions, informing geotechnical studies as well as infrastructure planning. Unfortunately, ... -
Wellington basin amplification: research goals and update from the National Seismic Hazard Model Programme
Kaiser, Anna; Hill, Matt; Wotherspoon, Liam; Bradley, Brendon; Lee, Robin; Roten, Daniel; Bourguignon, Sandra; Pancha, Aasha; Gerstenberger, Matt (2021-04-14)In Wellington, 3D basin amplification effects observed at 1 – 2 second spectral periods were identified as one factor likely to have exacerbated damage to mid-rise structures during the 2016 Mw 7.8 Kaikōura earthquake ...