A5059301483- Landslides and related hazards
- earthquake and tectonic studies
- Seismology and Earthquake Studies
- Rock Mechanics and Modeling
- Planetary Science and Exploration
- Seismic Waves and Analysis
- Astro and Planetary Science
- Geology and Paleoclimatology Research
- Cryospheric studies and observations
- Earthquake Detection and Analysis
- Space Exploration and Technology
- Marine and environmental studies
- Seismic Performance and Analysis
- Methane Hydrates and Related Phenomena
- Plant Water Relations and Carbon Dynamics
- Coastal and Marine Dynamics
- Tree Root and Stability Studies
- Climate change and permafrost
- Earthquake and Disaster Impact Studies
- Geomagnetism and Paleomagnetism Studies
- Earthquake and Tsunami Effects
- Effects of Environmental Stressors on Livestock
- Spacecraft Dynamics and Control
- Space Science and Extraterrestrial Life
- Tree-ring climate responses
University of Canterbury
2019-2023
Central Washington University
2016-2019
Occidental College
2016
Jet Propulsion Laboratory
2016
Abstract Glacial retreat in recent decades has exposed unstable slopes and allowed deep water to extend beneath some of those slopes. Slope failure at the terminus Tyndall Glacier on 17 October 2015 sent 180 million tons rock into Taan Fiord, Alaska. The resulting tsunami reached elevations as high 193 m, one highest runups ever documented worldwide. Precursory deformation began before failure, event left a distinct sedimentary record, showing that geologic evidence can help understand past...
Abstract Coseismic landslides are observed in higher concentrations around surface-rupturing faults. This observation has been attributed to a combination of stronger ground motions and increased rock mass damage closer Past work shown it is difficult separate the influences from strong on landslide occurrence. We measured coseismic off-fault deformation (OFD) zone widths (treating them as proxy for areas more intense damage) using high-resolution, three-dimensional surface displacements...
Abstract. Modeling suggests that steep coastal regions will experience increasingly rapid erosion related to climate-change-induced sea level rise. Earthquakes can also cause intense episodes of cliff retreat, but coseismic failures are rarely captured in the historical record used calibrate most retreat forecast models. Here, we disaggregate cliff-top strong ground motion and non-seismic sources, providing a unique window into earthquake contributions multidecadal retreat. Widespread...
The distribution of ground motion, displacement, and secondary hazards around active faults is defined by the interaction tectonic site characteristics including fault kinematics. As a result this complexity, recommendations for setback distances or avoidance zones are necessarily simplified. We observed distributed vertical coseismic displacement from 2016 Mw 7.8 Kaikōura earthquake up to c. 500 m on either side sinistral-reverse Papatea fault. On average, 32% (2.13 m) was measured at >50...
Abstract. Coastal hillslopes often host higher concentrations of earthquake-induced landslides than those further inland, but few studies have investigated the reasons for this occurrence. As a result, it is unclear if regional landslide susceptibility models trained primarily on inland are effective predictors coastal susceptibility. The 2016 Mw 7.8 Kaikōura earthquake northeastern South Island New Zealand resulted in ca. 1600 > 50 m2 slopes 15∘ within 1 km coast, contributing to an...
Over the past decade, extreme temperature and drought have resulted in widespread early leaf discoloration European Beech (Fagus sylvatica) forests across central Europe. Discoloration during particularly hot dry summer of 2018 was ultimately associated with increased rates crown dieback tree mortality. Given trend towards hotter drier growing seasons under a changing climate, there is an increasing demand for site-specific recommendations on drought-resilient forest management practices...
Abstract Tectonic deformation within fault damage zones can influence slope stability and landslide failure mechanisms due to rock mass strength effects the presence of tectonic structures. Here, we used detailed site investigations evaluate controls on Half Moon Bay complex, located ~1 km from surface trace Hope in South Island New Zealand. During 2016 Mw 7.8 Kaikōura earthquake, experienced up ~13 m displacement partially transitioned into a avalanche (with volume ~350,000 m3). Deep-seated...
Off-fault deformation (OFD) data, additional methodology, and analysis.<br>
Abstract. Coastal hillslopes often host higher concentrations of earthquake induced landslides than those further inland, but few studies have investigated the reasons for this occurrence. As a result, it remains largely unclear if regional landslide susceptibility models trained primarily on inland are effective predictors coastal susceptibility. The 2016 Mw 7.8 Kaikōura northeast South Island New Zealand resulted in c. 1,600 > 50 m2 slopes 15° within 1 km coast. This forms an order...
The 2016 Mw 7.8 Kaik&#333;ura earthquake on New Zealand&#8217;s South Island triggered c. 30,000 landslides. Around 70% of landslides occurred in Torlesse greywacke rock mass, which is characterised by closely spaced but low-persistence joints. Most failures this mass were relatively shallow avalanches do not appear to follow traditional failure mechanism models. Here, we use detailed site characterisation and dynamic numerical modelling better understand landslide hazard risk from...