A5084625337- earthquake and tectonic studies
- Seismology and Earthquake Studies
- Geological and Geochemical Analysis
- Earthquake Detection and Analysis
- High-pressure geophysics and materials
- Geological and Geophysical Studies
- Reservoir Engineering and Simulation Methods
- Landslides and related hazards
- Seismic Waves and Analysis
- Seismic Performance and Analysis
- Seismic Imaging and Inversion Techniques
- Geological Formations and Processes Exploration
- Geological and Geophysical Studies Worldwide
- Geological Modeling and Analysis
- Hydraulic Fracturing and Reservoir Analysis
- Hydrocarbon exploration and reservoir analysis
- Powdery Mildew Fungal Diseases
- Methane Hydrates and Related Phenomena
- Geological formations and processes
- Geology and Paleoclimatology Research
GNS Science
2021-2024
University of Otago
2014-2021
Lamont-Doherty Earth Observatory
2016-2019
Columbia University
2019
ABSTRACT A seismicity rate model (SRM) has been developed as part of the 2022 Aotearoa New Zealand National Seismic Hazard Model revision. The SRM consists many component models, each which falls into one two classes: (1) inversion fault (IFM); or (2) distributed (DSM). Here we provide an overview and a brief description models. upper plate IFM forecasts occurrence for hundreds thousands potential ruptures derived from Community Fault version 1.0 utilizing either geologic- geodetic-based...
The New Zealand Community Fault Model (NZ CFM) is a publicly available representation of fault zones that have the potential to produce damaging earthquakes. Compiled through collaborative engagement between earthquake-science experts, this first edition (version 1.0) NZ CFM builds upon previous compilations earthquake-source active models with addition new and modified information. Developed primarily support an update National Seismic Hazard Model, comprises two principal components....
Abstract The 2022 revision of Aotearoa New Zealand National Seismic Hazard Model (NZ NSHM 2022) has involved significant all datasets and model components. In this article, we present a subset many results from the as well an overview governance, scientific, review processes followed by NZ team. calculated hazard increased for most when compared with previous models. models are available online.
Abstract Recurrence intervals of ground-surface rupturing earthquakes are one numerous datasets used to constrain the rates fault ruptures in 2022 revision New Zealand National Seismic Hazard Model (NZ NSHM 2022). Paleoearthquake timing and single-event displacement (SED) data Paleoseismic Site Database version 1.0 alongside geologic geodetic slip from Community Fault NZ Geodetic Deformation were estimate recurrence on faults across for inclusion 2022. Past earthquake timings fit with...
Abstract Site-specific paleoseismic data are key datasets underpinning the parameterization of large (Mw∼7+) earthquakes on faults in seismic hazard models. For New Zealand National Seismic Hazard Model 2022 Revision Project (NZ NSHM 2022), a new database, NZ Paleoseismic Site Database PSDB), was developed that contains (slip rate, earthquake timings, recurrence interval [RI], and single-event displacement [SED]) for crustal (upper plate) active faults. The first edition version 1.0 (v.1.0)...
In this study, we provide the first field-based assessment of seismic potential Te Puninga Fault, Hauraki Plains, Waikato region. Initially considered to be part nearby Kerepehi our new mapping and field data suggest Fault is independent. A net slip rate value 0.25 mm/yr, based on geomorphic evaluations from two paleoseismic trenches, slightly higher than previously considered. Comparisons expression between faults that currently assigned could underestimated. The earthquake magnitude...
Abstract The Hikurangi subduction zone is capable of producing moderate to large earthquakes as well regularly repeating slow slip events. However, it unclear what structures host these different styles along the margin. Here we address whether splay faults can seismic at shallow (<1 km) depth by investigating Pāpaku fault, sampled during International Ocean Discovery Program Expedition 375. We use biomarker thermal maturity search for evidence frictional heating within turbiditic...
Abstract Creeping faults are difficult to assess for seismic hazard because they may participate in rupture even though likely cannot nucleate large earthquakes. The creeping central section of the San Andreas fault California (USA) has not participated a historical earthquake; however, earthquake ruptures nucleating locked northern and southern sections propagate through section. We used biomarker thermal maturity K/Ar dating on samples from Fault Observatory at Depth look evidence...
The development of multiple paleotemperature proxies over the last twenty years has led to an increasing number coseismic temperature measurements collected across a variety faults. Here we present first compilation rise and frictional energy estimates investigate contribution heating earthquake budget how this varies different fault properties. This demonstrates that there is no clear relationship between displacement or thickness principal slip zone. Coseismic increases with depth faulting...
The New Zealand Active Faults Database (NZAFD) contains underpinning data to help mitigate the impacts of future surface-rupturing earthquakes in Aotearoa Zealand. However, defining associated hazards and risks must be undertaken at relevant scales as such, NZAFD two scale-based datasets each serving complementary, but different, purposes. high-resolution ('NZAFD-HighRes') dataset enough detail on surface traces for cadastral scale land-use planning purposes, while other is generalised...
ABSTRACTThe Tokomaru Fault extends along the west side of southern North Island New Zealand. Given fault’s proximity to major and expanding population centres, new work was undertaken understand its contribution seismic hazard in Wellington-Levin corridor. Two paleoseismic trenches excavated across end Fault, close junction with Northern Ōhāriu show that it are more active than previously thought. Ages two youngest events on 93–220 1179–1254 cal yr BP, result a recurrence interval 470–2300...
Supplemental figures related to biomarker analysis, thermal modeling, and experimental setup; more detailed methodology, tables containing model parameters data.<br>