A5074620262- earthquake and tectonic studies
- Landslides and related hazards
- Geological and Geochemical Analysis
- Seismic Waves and Analysis
- Geology and Paleoclimatology Research
- Seismic Performance and Analysis
- Geotechnical Engineering and Underground Structures
- Seismology and Earthquake Studies
- Geotechnical Engineering and Soil Mechanics
- High-pressure geophysics and materials
- Geological formations and processes
- Earthquake Detection and Analysis
- Geotechnical Engineering and Analysis
- Geological Modeling and Analysis
- Geophysical Methods and Applications
- Geochemistry and Geologic Mapping
- Fire effects on ecosystems
- Geological and Geophysical Studies
- Coastal and Marine Dynamics
- Image Processing and 3D Reconstruction
- Health and Medical Studies
- Soil erosion and sediment transport
- Social and Demographic Issues in Germany
- Cryospheric studies and observations
- Hydrology and Sediment Transport Processes
BOKU University
2025
GNS Science
2011-2024
University of Vienna
2018-2022
Victoria University of Wellington
2013
The New Zealand Active Faults Database (NZAFD) is a national geospatial database of active faults – including their locations, names and degrees activity that have deformed the ground surface within last 125,000 years. NZAFD used for geological research, hazard modelling infrastructure planning an underlying dataset other nationally significant applications such as National Seismic Hazard Model. Recent refinements to data structure improved accuracy fault locations characteristics. A subset...
Coseismic coastal deformation is often used to understand slip on offshore faults in large earthquakes but the 2016 MW7.8 Kaikōura earthquake multiple ruptured across and sub-parallel coastline. Along ∼110 km of coastline, a rich dataset comprising airborne lidar differencing, field surveying satellite geodesy reveals highly variable vertical displacements, ranging from −2.5 6.5 m. These inform refined model for which incorporates changes inclusion an reverse crustal fault that accounts...
Research Article| June 12, 2018 Surface Rupture of Multiple Crustal Faults in the 2016 Mw 7.8 Kaikōura, New Zealand, Earthquake Nicola J. Litchfield; Litchfield aGNS Science, P.O. Box 30‐368, Lower Hutt 5040, n.litchfield@gns.cri.nz Search for other works by this author on: GSW Google Scholar Pilar Villamor; Villamor Russ Van Dissen; Dissen Andrew Nicol; Nicol bUniversity Canterbury, Private Bag 4800, Christchurch 8140, Zealand Philip M. Barnes; Barnes cNational Institute Water and...
Abstract The evolution of the continental intraarc Taupo Rift in North Island, New Zealand, is rapid, significantly faster than comparative intracontinental rifts such as African Rifts. Based on our faulting data and published geological, geophysical, borehole data, we show that activity ~2 Ma has rapidly asymmetrically narrowed via inward eastward migration (at rates approximately 30 km Myr −1 15 , respectively) propagated southward along its axis ~70 350 kyr. loci voluminous volcanic...
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...
The Mw 7.1 Darfield (Canterbury) earthquake of 4 September 2010 (NZST) was the first in New Zealand to produce ground-surface fault rupture since 1987 Edgecumbe earthquake. Surface previously unrecognised Greendale Fault during extends for at least 29.5 km and comprises an en echelon series east-west striking, left-stepping traces. Displacement is predominantly dextral strike-slip, averaging ~2.5 m, with maxima ~5 m along central part rupture. Maximum vertical displacement ~1.5 but generally...
Research Article| July 01, 2011 Associations between volcanic eruptions from Okataina center and surface rupture of nearby active faults, Taupo rift, New Zealand: Insights into the nature volcano-tectonic interactions P. Villamor; Villamor † 1GNS Science, Lower Hutt 5040, Zealand †E-mail: p.villamor@gns.cri.nz Search for other works by this author on: GSW Google Scholar K.R. Berryman; Berryman I.A. Nairn; Nairn 2Lake Okareka RD5, Rotorua 3076, K. Wilson; Wilson N. Litchfield; Litchfield W....
We provide a summary of the surface fault ruptures produced by Mw7.8 14 November 2016 Kaikōura earthquake, including examples damage to engineered structures, transportation networks and farming infrastructure direct rupture displacement. also an overview earthquake in context source model estimated ground motions from current (2010) version National Seismic Hazard Model (NSHM) for New Zealand. A total 21 faults ruptured along c.180 km long zone during some that were unknown prior event. The...
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| April 03, 2018 Onshore to Offshore Ground‐Surface and Seabed Rupture of the Jordan–Kekerengu–Needles Fault Network during 2016 Mw 7.8 Kaikōura Earthquake, New Zealand Jesse Kearse; Kearse aSchool Geography, Environment Earth Sciences, Victoria University Wellington, P.O. Box 600, Wellington 6040, Zealand, Jesse@kearse.co.nz Search for other works by this author on: GSW Google Scholar Timothy A. Little; Little Russ J. Van Dissen; Dissen bGNS Science, 1 Fairway Drive, Avalon...
Research Article| June 12, 2018 Coseismic Rupture and Preliminary Slip Estimates for the Papatea Fault Its Role in 2016 Mw 7.8 Kaikōura, New Zealand, Earthquake Robert M. Langridge; Langridge aGNS Science, P.O. Box 30‐368, Lower Hutt 5040, R.Langridge@gns.cri.nz Search other works by this author on: GSW Google Scholar Julie Rowland; Rowland bThe University of Auckland, Private Bag 92019, Auckland 1142, Zealand Pilar Villamor; Villamor Joshu Mountjoy; Mountjoy cNational Institute Water...
Liquefaction features and the geologic environment in which they formed were carefully studied at two sites near Lincoln southwest Christchurch.We undertook geomorphic mapping, excavated trenches, obtained hand cores areas with surficial evidence for liquefaction where no was present (Hardwick Marchand).The identified include (1) sand blows (singular aligned along linear fissures), (2) blisters or injections of subhorizontal dikes into topsoil, (3) related to blisters, (4) a collapse...
Abstract Rupture of the Greendale Fault during 4 September 2010, M W7.1 Darfield (Canterbury) earthquake produced a zone ground-surface rupture that severely damaged several houses, buildings and lifelines. Immediately after earthquake, surface features were mapped in field from digital terrain models developed airborne Light Detection Ranging (lidar) data. To enable rebuild decisions to be made for future land use planning, fault avoidance was defined following Ministry Environment...
Abstract Information on structure, stress, and their interrelationship is essential for understanding structurally controlled geothermal permeability. Active fault mapping, borehole image analysis, well testing in the Te Mihi area, New Zealand, allows us to refine structural fluid flow architecture of this resource. The area complex, comprising a set NW dipping master faults containing pervasive SE antithetic splay structures hanging walls. These are also intersected by E‐W striking faults....
ABSTRACT The Alpine fault is a high slip-rate plate boundary that poses significant seismic hazard to southern and central New Zealand. To date, the strongest paleoseismic evidence for onshore sections indicates typically ruptures during very large (Mw≥7.7) great “full-section” earthquakes. Three trenches excavated at northeastern end of its section Toaroha River (Staples site) provide new insights into surface-rupture behavior. Paleoseismic in each trench have been dated using best-ranked...
Following both the Cook Strait earthquake (Mw 6.6; 21 July, 2013) and Lake Grassmere 16 August, reconnaissance visits were made of epicentral regions to document general distribution extend landslides, liquefaction, other ground damage effects generated by these earthquakes. The extent landsliding in central New Zealand two earthquakes was at lower end expected range for shallow magnitudes. Liquefaction substantially less than those 2010-2011 Canterbury Christchurch area, despite fact that...
The dextral–reverse Alpine Fault offsets alluvial terraces of the Maruia River at Calf Paddock. RTK‐GPS surveying faulted yields detailed measurements fault slip across T1–T5. Pits were excavated to log stratigraphy, date deposits and thereby constrain rates for this site. mean four largest dextral terrace T2 is 12.0 ± 1.3 m. corresponding vertical offset 1.6 0.6 A single charcoal with an age 1095–1275 cal yr BP used derive minimum reverse 10 2 0.5 mm/yr, respectively. These are comparable...