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Images for earthquake; more images...

Images, eqnz.chch.2010

Photos taken at Gap Filler fair on April 9 following the February 22 earthquake. www.gapfiller.org.nz/ File reference: CCL-2011-04-08-Addington-Gapfiller-003.jpg From the collection of Christchurch City Libraries

Images, eqnz.chch.2010

Photos taken at Gap Filler fair on April 9 following the February 22 earthquake. www.gapfiller.org.nz/ File reference: CCL-2011-04-08-Addington-Gapfiller-005.jpg From the collection of Christchurch City Libraries

Images, eqnz.chch.2010

Photos taken at Gap Filler fair on April 9 following the February 22 earthquake. www.gapfiller.org.nz/ File reference: CCL-2011-04-08-Addington-Gapfiller-007.jpg From the collection of Christchurch City Libraries

Images, eqnz.chch.2010

Photos taken at Gap Filler fair on April 9 following the February 22 earthquake. www.gapfiller.org.nz/ File reference: CCL-2011-04-08-Addington-Gapfiller-002.jpg From the collection of Christchurch City Libraries

Images, eqnz.chch.2010

Photos taken at Gap Filler fair on April 9 following the February 22 earthquake. www.gapfiller.org.nz/ File reference: CCL-2011-04-08-Addington-Gapfiller-004.jpg From the collection of Christchurch City Libraries

Images, eqnz.chch.2010

Photos taken at Gap Filler fair on April 9 following the February 22 earthquake. www.gapfiller.org.nz/ File reference: CCL-2011-04-08-Addington-Gapfiller-008.jpg From the collection of Christchurch City Libraries

Images, eqnz.chch.2010

Photos taken at Gap Filler fair on April 9 following the February 22 earthquake. www.gapfiller.org.nz/ File reference: CCL-2011-04-08-Addington-Gapfiller-001.jpg From the collection of Christchurch City Libraries

Images, eqnz.chch.2010

Photos taken at Gap Filler fair on April 9 following the February 22 earthquake. www.gapfiller.org.nz/ File reference: CCL-2011-04-08-Addington-Gapfiller-006.jpg From the collection of Christchurch City Libraries

Images, eqnz.chch.2010

Photos of Christchurch City LIbraries Outreach staff working in welfare centres following the February 22 earthquake. File ref: CCL-2011-02-27-OperationStoryTime-boys-with-book From the collection of Christchurch City Libraries

Research Papers, Lincoln University

Natural hazards continue to have adverse effects on communities and households worldwide, accelerating research on proactively identifying and enhancing characteristics associated with resilience. Although resilience is often characterized as a return to normal, recent studies of postdisaster recovery have highlighted the ways in which new opportunities can emerge following disruption, challenging the status quo. Conversely, recovery and reconstruction may serve to reinforce preexisting social, institutional, and development pathways. Our understanding of these dynamics is limited however by the small number of practice examples, particularly for rural communities in developed nations. This study uses a social–ecological inventory to document the drivers, pathways, and mechanisms of resilience following a large-magnitude earthquake in Kaikōura, a coastal community in Aotearoa New Zealand. As part of the planning and implementation phase of a multiyear project, we used the tool as the basis for indepth and contextually sensitive analysis of rural resilience. Moreover, the deliberate application of social–ecological inventory was the first step in the research team reengaging with the community following the event. The inventory process provided an opportunity for research partners to share their stories and experiences and develop a shared understanding of changes that had taken place in the community. Results provide empirical insight into reactions to disruptive change associated with disasters. The inventory also informed the design of targeted research collaborations, established a platform for longer-term community engagement, and provides a baseline for assessing longitudinal changes in key resilience-related characteristics and community capacities. Findings suggest the utility of social–ecological inventory goes beyond natural resource management, and that it may be appropriate in a range of contexts where institutional, social, and economic restructuring have developed out of necessity in response to felt or anticipated external stressors.

Research papers, University of Canterbury Library

This poster presents preliminary results of ongoing experimental campaigns at the Universities of Auckland and Canterbury, aiming at investigating the seismic residual capacity of damaged reinforced concrete plastic hinges, as well as the effectiveness of epoxy injection techniques for restoring their stiffness, energy dissipation, and deformation capacity characteristics. This work is part of wider research project which started in 2012 at the University of Canterbury entitled “Residual Capacity and Repairing Options for Reinforced Concrete Buildings”, funded by the Natural Hazards Research Platform (NHRP). This research project aims at gaining a better understanding and providing the main end-users and stakeholders (practitioner engineers, owners, local and government authorities, insurers, and regulatory agencies) with comprehensive evidence-based information and practical guidelines to assess the residual capacity of damaged reinforced concrete buildings, as well as to evaluate the feasibility of repairing and thus support their delicate decision-making process of repair vs. demolition or replacement.

Research papers, University of Canterbury Library

Liquefaction-induced lateral spreading during the 2011 Christchurch earthquake in New Zealand was severe and extensive, and data regarding the displacements associated with the lateral spreading provides an excellent opportunity to better understand the factors that influence these movements. Horizontal displacements measured from optical satellite imagery and subsurface data from the New Zealand Geotechnical Database (NZGD) were used to investigate four distinct lateral spread areas along the Avon River in Christchurch. These areas experienced displacements between 0.5 and 2 m, with the inland extent of displacement ranging from 100 m to over 600 m. Existing empirical and semi-empirical displacement models tend to under estimate displacements at some sites and over estimate at others. The integrated datasets indicate that the areas with more severe and spatially extensive displacements are associated with thicker and more laterally continuous deposits of liquefiable soil. In some areas, the inland extent of displacements is constrained by geologic boundaries and geomorphic features, as expressed by distinct topographic breaks. In other areas the extent of displacement is influenced by the continuity of liquefiable strata or by the presence of layers that may act as vertical seepage barriers. These observations demonstrate the need to integrate geologic/geomorphic analyses with geotechnical analyses when assessing the potential for lateral spreading movements.

Images, UC QuakeStudies

A photograph of an earthquake-damaged house on Marine Parade in North Brighton. The front section of the house has collapsed, the rest buckled. The wall of the gable has also collapsed as well as part of the lower front wall. A red sticker in the window indicates that the building is unsafe to enter. A message has been spray painted on the front window, reading, "Roof tiles, $3 each". Police tape has been used to cordon off the house. Public notices can be seen on the fence, on the roof of the collapsed section and the section behind.

Research papers, University of Canterbury Library

Background and methodology The Mw 7.8, 14th November 2016 earthquake centred (item b, figure 1) in the Hurunui District of the South Island, New Zealand, damaged critical infrastructure across North Canterbury and Marlborough. We investigate the impacts to infrastructure and adaptations to the resulting service disruption in four small rural towns (figure 1): Culverden (a), Waiau (c), Ward (d) and Seddon (e). This is accomplished though literary research, interviews and geospatial analysis. Illustrating our methods, we have displayed here a Hurunui District hazard map (figure 2b) and select infrastructure inventories (figures 2a, 3).

Images, UC QuakeStudies

A poster created by Empowered Christchurch to advertise their submission to the CERA Draft Transition Recovery Plan on social media.The poster reads, "Submission, CERA Draft Transition Recovery Plan. Seismic Risk. One thing we can learn from the past is that seismic risk in Canterbury has been underestimated before the earthquakes struck. This is confirmed in a report for EQC in 1991 (paper 2005). It is also the conclusion of the Royal Commission in the CTV report. A number of recommendations have been made but not followed. For example, neither the AS/NZS 1170.5 standard nor the New Zealand Geotechnical Society guidelines have been updated. Yet another recovery instrument is the Earthquake Prone Building Act, which is still to be passed by Parliament. As the emergency response part of the recovery is now behind us, we need to ensure sustainability for what lies ahead. We need a city that is driven by the people that live in it, and enabled by a bureaucracy that accepts and mitigates risks, rather than transferring them to the most vulnerable residents."

Research Papers, Lincoln University

The concept of geoparks was first introduced in the first international conference on geoparks held in China in 2004. Here in New Zealand, Kiwis are accustomed to national parks, land reserves, marine reserves, and urban cities and regional parks. The concept of these protected areas has been long-standing in the country, whereas the UNESCO concept of geoparks is still novel and yet to be established in New Zealand. In this dissertation, I explored the geopark concept for better understanding of its merits and examined the benefits of geotourism attractions as a sustainable economic development strategy to retrieve a declining rural economy. This research is focused on Kaikoura as a case study with geological significance, and emphasizes pre-earthquake existing geological heritages and new existing geological heritages post-earthquake to determine whether the geopark concept is appropriate and what planning framework is available to process this concept proposal should Kaikoura be interested in future.

Research papers, University of Canterbury Library

Earthquake-triggered soil liquefaction caused extensive damage and heavy economic losses in Christchurch during the 2010-2011 Canterbury earthquakes. The most severe manifestations of liquefaction were associated with the presence of natural deposits of clean sands and silty sands of fluvial origin. However, liquefaction resistance of fines-containing sands is commonly inferred from empirical relationships based on clean sands (i.e. sands with less than 5% fines). Hence, existing evaluation methods have poor accuracy when applied to silty sands. The liquefaction behaviour of Christchurch fines-containing (silty) sands is investigated through a series of Direct Simple Shear (DSS) tests. This type of test better resembles earthquake loading conditions in soil deposits compared to cyclic triaxial tests. Soil specimens are reconstituted in the laboratory with the water sedimentation technique. This preparation method yields soil fabrics similar to those encountered in fluvial soil deposits, which are common in the Christchurch area. Test results provide preliminary indications on how void ratio, relative density, preparation method and fines content influence the cyclic liquefaction behaviour of sand-silt mixtures depending on the properties of host sand and silt.