A5001156217- Landslides and related hazards
- earthquake and tectonic studies
- Geotechnical Engineering and Analysis
- Cryospheric studies and observations
- Seismology and Earthquake Studies
- Dam Engineering and Safety
- Seismic Performance and Analysis
- Tree Root and Stability Studies
- Hydrology and Sediment Transport Processes
- Seismic Waves and Analysis
- Rock Mechanics and Modeling
- Flood Risk Assessment and Management
- Fire effects on ecosystems
- Soil and Unsaturated Flow
- Soil erosion and sediment transport
- Earthquake and Disaster Impact Studies
- Remote Sensing and LiDAR Applications
- Geotechnical Engineering and Soil Stabilization
- Coastal and Marine Dynamics
- Geological formations and processes
- Geological Modeling and Analysis
- Tropical and Extratropical Cyclones Research
- Geotechnical and Geomechanical Engineering
- Earthquake Detection and Analysis
- Geology and Paleoclimatology Research
GNS Science
2016-2025
U.S. Army Engineer Research and Development Center
2024
United States Army Corps of Engineers
2024
Corvallis Environmental Center
2022
University of Wisconsin–Madison
2021
Crown Research Institutes
2021
University of Pennsylvania
2007
Research Article| April 05, 2017 The 2016 Kaikōura, New Zealand, Earthquake: Preliminary Seismological Report A. Kaiser; Kaiser aGNS Science, P.O. Box 30‐368, Lower Hutt 5040, Zealanda.kaiser@gns.cri.nze.danastasio@gns.cri.nzs.bannister@gns.cri.nz Search for other works by this author on: GSW Google Scholar N. Balfour; Balfour B. Fry; Fry C. Holden; Holden Litchfield; Litchfield M. Gerstenberger; Gerstenberger E. D’Anastasio; D’Anastasio Horspool; Horspool G. McVerry; McVerry J. Ristau;...
Research Article| March 27, 2018 Landslides Triggered by the 14 November 2016 Mw 7.8 Kaikōura Earthquake, New Zealand C. Massey; Massey aGNS Science, P.O. Box 30‐368, Lower Hutt 5040, Zealand, c.massey@gns.cri.nz Search for other works this author on: GSW Google Scholar D. Townsend; Townsend E. Rathje; Rathje bUniversity of Texas, 110 Inner Campus Drive, Austin, Texas 78705 K. Allstadt; Allstadt cU.S. Geological Survey, 25046, DFC, MS 966, Denver, Colorado 80225‐0046 B. Lukovic; Lukovic Y....
Abstract A moment magnitude (Mw) 6.2 earthquake struck beneath the outer suburbs of Christchurch, New Zealand's second largest city, on 22 February 2011 local time. The Christchurch was deadliest in Zealand since 1931 Mw 7.8 Hawkes Bay and most expensive recorded history. effects region's population infrastructure were severe including 181 fatalities, widespread building damage, liquefaction landslides. an aftershock 7.1 Darfield Earthquake September 2010, occurring towards eastern edge...
Abstract We use a mapped landslide inventory coupled with 2‐m resolution vertical difference model covering an area of 6,875 km 2 to accurately constrain volume‐area relationships. the calculate source volumes for landslides triggered by M W 7.8 Kaikōura, New Zealand, earthquake 14 November 2016. Of 29,519 in inventory, 28,394 are within analysis area, and these, we have calculated volume 17,256 areas that ≥90% free debris. landslides, about 80% classified as soil or rock avalanches...
Abstract The effects of strong ground shaking on hillslope stability can persist for many years after a large earthquake, leading to an increase in the rates post earthquake land sliding. factors that control rate post‐earthquake sliding are poorly constrained, hindering our ability reliably forecast how landscapes and landslide hazards risk evolve. To address this, we use unique data set comprising high‐resolution terrestrial laser scans airborne lidar captured during 2010–2011 Canterbury...
The Canterbury earthquake sequence triggered thousands of rockfalls in the Port Hills Christchurch, New Zealand, with over 6,000 falling on 22 February 2011. Several hundred families were evacuated after about 200 homes hit. We characterized by boulder-size distribution, runout distance, source-area dimensions, and boulder-production rates a range triggering peak ground accelerations. Using these characteristics, time-varying seismic hazard model for Canterbury, estimates residential...
Research Article| March 27, 2018 Improving Near‐Real‐Time Coseismic Landslide Models: Lessons Learned from the 2016 Kaikōura, New Zealand, Earthquake Kate E. Allstadt; Allstadt aU.S. Geological Survey, Geologic Hazards Science Center, P.O. Box 25046, DFC, MS 966, Denver, Colorado 80225, kallstadt@usgs.gov Search for other works by this author on: GSW Google Scholar Randall W. Jibson; Jibson Eric M. Thompson; Thompson Chris I. Massey; Massey bGNS Science, 1 Fairway Drive, Avalon 5010, 30‐368,...
Daily correlations of ambient seismic noise on a large landslide at Utiku, New Zealand, reveal velocity changes up to [Formula: see text] that follow summer/winter cycle consistent with the pore-water pressures monitored basal slip surface in landslide. The annual pattern is borne by limited frequency band (6–8 Hz typically) suggests localized change medium. Rayleigh waves form signal within this have maximum sensitivity depth 2–3 m below ground surface, water table level. Fluid saturation...
Abstract Earthquake‐triggered slow‐moving landslides are not well studied mainly due to a lack of high‐resolution in‐situ geodetic observations both in time and space. Satellite‐based interferometric synthetic aperture radar (InSAR) has shown potential applications, however, it is challenging detect earthquake‐triggered over large areas the effects post‐seismic tectonic deformations, atmospheric delays, other spatially propagated errors (e.g., unwrapped caused by decorrelation noises). Here,...
Tens of thousands landslides were generated over 10,000 km2 North Canterbury and Marlborough as a consequence the 14 November 2016, Mw7.8 Kaikōura Earthquake. The most intense landslide damage was concentrated in 3500 around areas fault rupture. Given sparsely populated area affected by landslides, only few homes impacted there no recorded deaths due to landslides. Landslides caused major disruption with all road rail links being severed. affecting State Highway 1 (the main link South Island...
Thousands of large (> 2 ha) rock slope failures affect the Neogene marine sedimentary cover rocks Aotearoa New Zealand. These soft damage lifeline infrastructure, entire suburbs, agricultural land, and deliver disproportionate volumes fine sediment to rivers. Most landslides are primed by, adjacent to, major river corridors suggesting interaction coupling with The millennial-scale longevity landslides, their propensity reactivate, 10% being active today, provides an opportunity explore...
Abstract. Although slow-moving landslides represent a substantial hazard, their detailed mechanisms are still comparatively poorly understood. We have conducted suite of innovative laboratory experiments using novel equipment to simulate range porewater pressure and dynamic stress scenarios on samples collected from landslide complex in New Zealand. sought understand how changes ground acceleration during earthquakes influence the movement patterns landslides. Our show that periods elevated...
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...