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Images, UC QuakeStudies

A photograph of members of the Wellington Emergency Management Office Emergency Response Team and the Red Cross working on High and Manchester Streets. On both sides of the street there are piles of rubble from the earthquake-damaged buildings. Several excavators have been parked in a line along the street.

Images, UC QuakeStudies

A photograph of the entrance to Cowles Stadium on Pages Road. The stadium was set up by Civil Defence to serve as temporary accommodation for people displaced by the 4 September 2010 earthquake. Signs on the door read, "Civil Defence", "If you are unwwell with flu or cold, please go to the doctor and not enter" and "Welcome to Cowles Stadium. Earthquake affected people only - you must register with Red Cross to receive help. Other help go to Winz office, 154 Aldwins Road, Linwood. Please, no alcohol, no drugs on site. Food and drinks only in designated areas".

Images, UC QuakeStudies

A photograph of members of the Clandeboye Emergency Response Team and the Red Cross working on High Street near the intersection of Manchester Street. A digger is parked on the street in front of the workers. Behind the digger is a large pile of rubble from the ANZ Bank building.

Images, UC QuakeStudies

A photograph of members of the Clandeboye Emergency Response Team and the Red Cross Team working on High Street near the intersection with Manchester Street. In the background is a large pile of rubble from the ANZ Bank building. In the foreground the members have placed their bags on a group of outdoor chairs and tables still on the footpath.

Images, UC QuakeStudies

A photograph of the earthquake damage to the Cathedral of the Blessed Sacrament on Barbadoes Street. The tower on the right has crumbled and the masonry has fallen to the pavement below. A car has been crushed by the fallen rubble. The dome of the left tower has collapsed and the cross at the top of the building is on a lean.

Images, UC QuakeStudies

A photograph of members of the Wellington Emergency Management Office Emergency Response Team and the Red Cross, standing on the corner of Lichfield and Manchester Street. In the background an excavator is parked on the road. Behind the excavator is a block of earthquake-damaged buildings.

Images, UC QuakeStudies

A house in Christchurch with a red sticker on the window indicating that it is unsafe to enter. "No entry" and a large cross have also been spray painted on the front fence to warn people off. On the right side of the house, a tarpaulin can be seen covering a collapsed brick wall.

Images, UC QuakeStudies

Damage to the front of the Cathedral of the Blessed Sacrament. The upper part of the corner structures have collapsed, and the cross on the roof is on a lean. A statue of the Virgin Mary can be seen in a window. The photographer comments, "A bike ride around the CBD. Catholic Cathedral, Barbadoes St".

Images, UC QuakeStudies

Flowers float under the twisted Medway Street Bridge during the River of Flowers memorial event. A colourful cross has been attached to the centre of the bridge. The photographer comments, "One year on, Riverside residents gather for a 2 minute silence and to cast flowers in the river. Riverside residents met at the Medway St bridge to commemorate the anniversary of the 22/2/11 quake".

Images, UC QuakeStudies

An aerial photograph of a residential area in Avonside. The photograph has been captioned by BeckerFraserPhotos, "The dominant road in this picture is Avondale Road which crosses the River Avon. To the left of this photograph is all zoned red apart from a small piece on the other side of the river. On the right-hand side of Avondale Road, some streets are zoned green although the streets closest to the river are red-zoned".

Research Papers, Lincoln University

Disasters are often followed by a large-scale stimulus supporting the economy through the built environment, which can last years. During this time, official economic indicators tend to suggest the economy is doing well, but as activity winds down, the sentiment can quickly change. In response to the damaging 2011 earthquakes in Canterbury, New Zealand, the regional economy outpaced national economic growth rates for several years during the rebuild. The repair work on the built environment created years of elevated building activity. However, after the peak of the rebuilding activity, as economic and employment growth retracts below national growth, we are left with the question of how the underlying economy performs during large scale stimulus activity in the built environment. This paper assesses the performance of the underlying economy by quantifying the usual, demand-driven level of building activity at this time. Applying an Input–Output approach and excluding the economic benefit gained from the investment stimulus reveals the performance of the underlying economy. The results reveal a strong growing underlying economy, and while convergence was expected as the stimulus slowed down, the results found that growth had already crossed over for some time. The results reveal that the investment stimulus provides an initial 1.5% to 2% growth buffer from the underlying economy before the growth rates cross over. This supports short-term economic recovery and enables the underlying economy to transition away from a significant rebuild stimulus. Once the growth crosses over, five years after the disaster, economic growth in the underlying economy remains buoyant even if official regional economic data suggest otherwise.

Images, UC QuakeStudies

A photograph of a map used by emergency management personnel to inspect buildings after the 22 February 2011 earthquake. The map is of the block bordered by Barbadoes Street, Worcester Street, Gloucester Street, and Fitzgerald Avenue. Many of the buildings have been highlighted in blue, with some smaller buildings highlighted in orange. Numbers and messages have been written on the map with biro. One of the messages reads, "forced entry to garage at back". A few of the buildings have also been crossed off with pen.

Research papers, University of Canterbury Library

In this paper we apply Full waveform tomography (FWT) based on the Adjoint-Wavefield (AW) method to iteratively invert a 3-D geophysical velocity model for the Canterbury region (Lee, 2017) from a simple initial model. The seismic wavefields was generated using numerical solution of the 3-D elastodynamic/ visco- elastodynamic equations (EMOD3D was adopted (Graves, 1996)), and through the AW method, gradients of model parameters (compression and shear wave velocity) were computed by implementing the cross-adjoint of forward and backward wavefields. The reversed-in-time displacement residual was utilized as the adjoint source. For inversion, we also account for the near source/ station effects, gradient precondition, smoothening (Gaussian filter in spatial domain) and optimal step length. Simulation-to-observation misfit measurements based on 191 sources at 78 seismic stations in the Canterbury region (Figure 1) were used into our inversion. The inversion process includes multiple frequency bands, starting from 0-0.05Hz, and advancing to higher frequency bands (0-0.1Hz and 0-0.2Hz). Each frequency band was used for up to 10 iterations or no optimal step length found. After 3 FWT inversion runs, the simulated seismograms computed using our final model show a good matching with the observed seismograms at frequencies from 0 - 0.2 Hz and the normalized least-squared misfit error has been significantly reduced. Over all, the synthetic study of FWT shows a good application to improve the crustal velocity models from the existed geological models and the seismic data of the different earthquake events happened in the Canterbury region.

Videos, UC QuakeStudies

A video of the keynote presentation by Sir John Holmes, during the first plenary of the 2016 People in Disasters Conference. Holmes is the former United Nations Under-Secretary-General for Humanitarian Affairs and Emergency Relief Coordinator, the current Director of Ditchley Foundation, and the chair of the Board of the International Rescue Committee in the UK. The presentation is titled, "The Politics of Humanity: Reflections on international aid in disasters".The abstract for this presentation reads as follows: As United Nations Under-Secretary-General for Humanitarian Affairs and Emergency Relief Coordinate from 2007-2010, Sir John Holmes was heavily involved in the coordination of air provision to countries struck by natural and man-made disasters, raising the necessary funds, and the elaboration of humanitarian policy. The international humanitarian system is fragmented and struggling to cope with rising demands from both conflicts such as that in Syria, and the growing effects of climate change. Sir John will talk about what humanitarian aid can and cannot achieve, the frustrations of getting aid through when access may be difficult or denied, and the need to ensure that assistance encompasses protection of civilians and efforts to get them back on their feet, as well as the delivery of essential short term items such as food, water, medical care and shelter. He will discuss the challenges involved in trying to make the different agencies - UN United Nations, non-government organisations and the International Red Cross/Crescent movement - work together effectively. He will reveal some of the problems in dealing with donor and recipient governments who often have their own political and security agendas, and may be little interested in the necessary neutrality and independence of humanitarian aid. He will illustrate these points by practical examples of political and other dilemmas from aid provision in natural disasters such as Cyclone Nargis in Myanmar in 2009, and the Haiti earthquake of 2010, and in conflict situations such as Darfur, Afghanistan and Sri Lanka in the past, and Syria today. He will also draw conclusions and make recommendations about how humanitarian aid might work better, and why politicians and others need to understand more clearly the impartial space required by humanitarian agencies to operate properly.