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Research papers, The University of Auckland Library

Unrestrained unreinforced clay brick masonry (URM) parapets are found atop a large number of vintage URM buildings. Parapets are typically non-structural cantilevered wall elements that form a fire barrier and in most cases form decorative and ornamental features of vintage URM buildings. Parapets are considered to be one of the most vulnerable elements that are prone to out-of-plane collapse when subjected to earthquake induced shaking. An in-depth analysis of the damage database collected following the 2010/2011 Canterbury earthquakes was performed to obtain information about the distribution, characteristics and observed performance of both the as-built and retrofitted parapets in the Christchurch region. Results, statistical interpretation and implications are presented herein. http://www.aees.org.au/downloads/conference-papers/2015-2/

Research papers, Victoria University of Wellington

We measure the longer-term effect of a major earthquake on the local economy, using night-time light intensity measured from space, and investigate whether insurance claim payments for damaged residential property affected the local recovery process. We focus on the destructive Christchurch earthquake of 2011 as our case study. In this event more than 95% of residential housing units were covered by insurance, but insurance payments were staggered over 5 years, enabling us to identify their local impact. We find that night-time luminosity can capture the process of recovery and describe the recovery’s determinants. We also find that insurance payments contributed significantly to the process of economic recovery after the earthquake, but delayed payments were less affective and cash settlement of claims were more affective in contributing to local recovery than insurance-managed rebuilding.

Images, Alexander Turnbull Library

The cartoon is a spoof of Rodin's famous sculpture 'The thinker' and shows it with a globe for its head. It holds a newspaper that reads 'Massive 'quake in Japan - ChCh. 'quake, China 'quake, Aus. Floods fires etc. etc.' The thinker ponders 'What's with all these disasters?..' Context - The massive earthquake in Japan that led to a devastating tsunami and now threats from several damaged nuclear power stations, the earthquakes in Christchurch on 4 September 2010 and 22 February 2011, the 5.8-magnitude earthquake in Yingjiang County, southwest China's Yunnan Province on March 15, 2011, and the January floods in Queensland, Australia, as well as bush fires on the outskirts of the Western Australia capital Perth. Quantity: 1 digital cartoon(s).

Images, Canterbury Museum

One landscape colour digital photograph taken on 25 February 2011 showing damage to the Lyttelton Police Station on Sumner Road and London Street. Photograph taken looking west from St Davids Street. In December 2011, the New Zealand Police decided that the Lyttelton Police Station would be demolished. The building, which opened in 1882 was re...

Images, UC QuakeStudies

A photograph of the earthquake damage to the Loyal Benevolent Lodge on Canon Street. Bricks at the top of the façade have crumbled and fallen to the ground, bringing the awning with them. Large cracks can be seen in the remaining brick wall.

Images, UC QuakeStudies

A photograph of the earthquake damage to the Asko Design building on Victoria Street. The front facade and side wall have crumpled, exposing the inside of the buildings. The awnings over the windows have been twisted and ripped off by the falling bricks.

Images, UC QuakeStudies

A photograph looking north up Colombo Street across the intersection of Kilmore Street. The buildings on either side of the street have been severely damaged by the earthquakes. The rubble and other debris has since been cleared from the street and footpaths.

Images, UC QuakeStudies

A photograph of the second storey of the partially-demolished Westende Jewellers Building on the corner of Manchester and Worcester Streets, which housed Alva Rados Mexican restaurant. The building was severely damage during the 4 September 2010 earthquake and had to be demolished.

Images, UC QuakeStudies

A photograph of the earthquake damage to a Stonehurst Accommodation building on Gloucester. The bottom storey of the building has collapsed and the top two storeys are resting on the rubble. One wall of the building has also collapsed, exposing the rooms inside.

Images, UC QuakeStudies

A photograph of the earthquake damage to a house on Woodham Road. The house has come off its foundations as the bricks wall have crumbled, spilling onto the footpath in front. Road cones have been placed along the street to warn road users.

Images, UC QuakeStudies

A damaged concrete tilt-slab building. The slabs have separated and tilted, and are supported by steel bracing. The photographer comments, "This house in Christchurch was made by bolting 4 slabs of concrete together. A fantastic idea in a country prone to earthquakes".

Research papers, University of Canterbury Library

This study analyses the Earthquake Commission’s (EQC) insurance claims database to investigate the influence of seismic intensity and property damage resulting from the Canterbury Earthquake Sequence (CES) on the repair costs and claim settlement duration for residential buildings. Firstly, the ratio of building repair cost to its replacement cost was expressed as a Building Loss Ratio (BLR), which was further extended to Regional Loss Ratio (RLR) for greater Christchurch by multiplying the average of all building loss ratios with the proportion of building stock that lodged an insurance claim. Secondly, the total time required to settle the claim and the time taken to complete each phase of the claim settlement process were obtained. Based on the database, the regional loss ratio for greater Christchurch for three events producing shakings of intensities 6, 7, and 8 on the modified Mercalli intensity scale were 0.013, 0.066, and 0.171, respectively. Furthermore, small (less than NZD15,000), medium (between NZD15,000 and NZD100,000), and large (more than NZD100,000) claims took 0.35-0.55, 1.95-2.45, and 3.35-3.85 years to settle regardless of the building’s construction period and earthquake intensities. The number of claims was also disaggregated by various building characteristics to evaluate their relative contribution to the damage and repair costs.