Oral history interview with Jayne Rattray about her experiences of the Canterbury earthquakes.
Oral history interview with Tokanga Vehikite about her experiences of the Canterbury earthquakes.
Oral history interview with Jacqui Gavin about her experiences of the Canterbury earthquakes.
Oral history interview with Leanne Curtis about her experiences of the Canterbury earthquakes.
Oral history interview with Irene Cleary about her experiences of the Canterbury earthquakes.
Oral history interview with Susan Hird about her experiences of the Canterbury earthquakes.
Oral history interview with Ruth Todd about her experiences of the Canterbury earthquakes.
Oral history interview with Lianne Dalziel about her experiences of the Canterbury earthquakes.
Oral history interview with Carol Hides about her experiences of the Canterbury earthquakes.
Oral history interview with Joyce Wallace about her experiences of the Canterbury earthquakes.
Oral history interview with Lindsey James about her experiences of the Canterbury earthquakes.
Oral history interview with Helen King about her experiences of the Canterbury earthquakes.
Oral history interview with Helen Trappitt about her experiences of the Canterbury earthquakes.
Oral history interview with Sharon Torstonson about her experiences of the Canterbury earthquakes.
Oral history interview with Lois Herbert about her experiences of the Canterbury earthquakes.
Oral history interview with Phillippa Jacobs about her experiences of the Canterbury earthquakes.
Oral history interview with Wendy Hawke about her experiences of the Canterbury earthquakes.
Oral history interview with Thérèse Angelo about her experiences of the Canterbury earthquakes.
One landscape colour digital photograph taken on 25 February 2011 showing the damage to the former Anglican Vicarage on Ripon Street Lyttelton. Taken from the footpath. Architect The sense of loss felt when confronted with the collapse or demolition of an historic building is compounded when that building is also a home. While the community sees...
The Leader Fault was one of at least 17 faults that ruptured the ground surface across the northeastern South Island of New Zealand during the Mw 7.8 2016 Kaikōura Earthquake. The southern ~6 km of the Leader Fault, here referred to as the South Leader Fault (SLF), ruptured the North Canterbury (tectonic) Domain and is the primary focus of this study. The main objective of the thesis is to understand the key factors that contributed to the geometry and kinematics of the 2016 SLF rupture and its intersection with The Humps Fault (HF). This thesis employs a combination of techniques to achieve the primary objective, including detailed mapping of the bedrock geology, geomorphology and 2016 rupture, measurement of 2016 ground surface displacements, kinematic analysis of slip vectors from the earthquake, and logging of a single natural exposure across a 2016 rupture that was treated as a paleoseismic trench. The resulting datasets were collected in the field, from terrestrial LiDAR and InSAR imagery, and from historical (pre-earthquake) aerial photographs for a ~11 km2 study area. Surface ruptures in the study area are a miniature version of the entire rupture from the earthquake; they are geometrically and kinematically complex, with many individual and discontinuous segments of varying orientations and slip senses which are distributed across a zone up to ~3.5 km wide. Despite this variability, three main groups of ruptures have been identified. These are: 1) NE-SW striking, shallow to moderate dipping (25-45°W) faults that are approximately parallel to Cenozoic bedding with mainly reverse dip-slip and, and for the purposes of this thesis, are considered to be part of the SLF. 2) N-S striking, steeply dipping (~85°E) oblique sinistral faults that are up to the west and part of the SLF. 3) E-NE striking, moderate to steeply dipping (45-68°N) dextral reverse faults which are part of the HF. Bedding-parallel faults are interpreted to be flexural slip structures formed during folding of the near-surface Cenozoic strata, while the steeply dipping SLF ruptured a pre-existing bedrock fault which has little topographic expression. Groups 1 and 2 faults were both locally used for gravitational failure during the earthquake. Despite this non-tectonic fault movement, the slip vectors for faults that ruptured during the earthquake are broadly consistent with NCD tectonics and the regional ~100-120° trend of the principal horizontal stress/strain axes. Previous earthquake activity on the SLF is required by its displacement of Cenozoic formations but Late Quaternary slip on the fault prior to 2016 is neither supported by pre-existing fault scarps nor by changes in topography across the fault. By contrast, at least two earthquakes (including 2016) appear to have ruptured the HF from the mid Holocene, consistent with recurrence intervals of no more than ~7 kyr, and with preliminary observations from trenches on the fault farther to the west. The disparity in paleoearthquake records of the two faults suggests that they typically do not rupture together, thus it is concluded that the HF-SLF rupture pattern observed in the Kaikōura Earthquake rarely occurs in a single earthquake.
The timing of large Holocene prehistoric earthquakes is determined by dated surface ruptures and landslides at the edge of the Australia-Pacific plate boundary zone in North Canterbury, New Zealand. Collectively, these data indicate two large (M > 7) earthquakes during the last circa 2500 years, within a newly formed zone of hybrid strike-slip and thrust faulting herein described as the Porter's Pass-to-Amberley Fault Zone (PPAFZ). Two earlier events during the Holocene are also recognized, but the data prior to 2500 years are presumed to be incomplete. A return period of 1300–2000 years between large earthquakes in the PPAFZ is consistent with a late Holocene slip rate of 3–4 mm/yr if each displacement is in the range 4–8 m. Historical seismicity in the PPAFZ is characterized by frequent small and moderate magnitude earthquakes and a seismicity rate that is identical to a region surrounding the structurally mature Hope fault of the Marlborough Fault System farther north. This is despite an order-of-magnitude difference in slip rate between the respective fault zones and considerable differences in the recurrence rate of large earthquakes. The magnitude-frequency distribution in the Hope fault region is in accord with the characteristic earthquake model, whereas the rate of large earthquakes in the PPAFZ is approximated (but over predicted) by the Gutenberg-Richter model. The comparison of these two fault zones demonstrates the importance of the structural maturity of the fault zone in relation to seismicity rates inferred from recent, historical, and paleoseismic data.
A photograph of the earthquake damage to the back of the Canterbury Provincial Chambers, taken from Oxford Terrace across the Avon River.
This paper presents a critical evaluation of vertical ground motions observed in the Canterbury earthquake sequence. The abundance of strong near-source ground-motion recordings provides an opportunity to comprehensively review the estimation of vertical ground motions via the New Zealand Standard for earthquake loading, NZS1170.5:2004, and empirical ground motion prediction equations (GMPEs). An in-depth review of current GMPEs is carried out to determine the existing trends and characteristics present in the empirical models. Results illustrate that vertical ground motion amplitudes estimated based on NZS1170.5:2004 are significantly unconservative at short periods and near-source distances. While conventional GMPEs provide an improved prediction, in many instances they too underpredict vertical ground motion accelerations at short periods and near-source distances.
Band Together - Concert for Canterbury www.bandtogetherforcanterbury.co.nz 23rd October 2010 Free concrete in Hagley Park following the 4th September 2010 earthquake
Part 2 of a video contributed by Henry Allison, a participant in the Understanding Place research project. The video has the description "Henry Allison talks about the architecture that was lost in the central city".
This study compiled and tabulated all relevant available information on earthquake sources (active faults) in Canterbury and mapped the fault locations onto 1:50,000 or 1:250,000 overlays on topographic maps (later digitised into the Environment Canterbury active faults database). The study also reviewed information on historic earthquakes, instrumental seismicity and paleoseismic studies and identified information gaps. It recommended an approach for a probabilistic seismic hazard analysis and development of earthquake scenarios. See Object Overview for background and usage information.
Farmers in North Canterbury say the earthquake is another blow to a region which has battled drought and volatile lamb and dairy markets
The Canterbury earthquakes are behind a big blowout in the Government's deficit which has grown to a record 18-point-4 billion dollars.
People in Canterbury with homes damaged by the February 22nd earthquake have less than six hours left to lodge a claim with the Earthquake Commission.
Liquefaction 'volcanos' in Kaiapoi, after the September 4th earthquake. Silt erupted out of the ground, piling up over the surface and leaving cracks at the mouth of the volcano.