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Images for 2010; more images...

Images, UC QuakeStudies

A photograph of Pasifika House at the University of Canterbury. The house has a damaged chimney. A sign on the door reads, "The University is on emergency lock down. This includes the fale. Please do not enter.

Images, UC QuakeStudies

Moira Fraser in front of the 'Passing Time' sculpture on the corner of St Asaph Street and Madras Street. 'Passing Time' was installed outside the CPIT Building for the 6th SCAPE (a contemporary public art programme in Christchurch) a few days prior to the 22 February 2011 earthquake. The work features twisting boxes depicting each year between 1906 (the founding of CPIT) and 2010 (the date of the sculpture's production).

Research papers, The University of Auckland Library

This thesis describes the strategies for earthquake strengthening vintage clay bricks unreinforced masonry (URM) buildings. URM buildings are well known to be vulnerable to damage from earthquake-induced lateral forces that may result in partial or full building collapse. The 2010/2011 Canterbury earthquakes are the most recent destructive natural disaster that resulted in the deaths of 185 people. The earthquake events had drawn people’s attention when URM failure and collapse caused about 39 of the fatality. Despite the poor performance of URM buildings during the 2010/2011 Canterbury earthquakes, a number of successful case study buildings were identified and their details research in-depth. In order to discover the successful seismic retrofitting techniques, two case studies of retrofitted historical buildings located in Christchurch, New Zealand i.e. Orion’s URM substations and an iconic Heritage Hotel (aka Old Government Building) was conducted by investigating and evaluating the earthquake performance of the seismic retrofitting technique applied on the buildings prior to the 2010/2011 Canterbury earthquakes and their performance after the earthquakes sequence. The second part of the research reported in this thesis was directed with the primary aim of developing a cost-effective seismic retrofitting technique with minimal interference to the vintage clay-bricks URM buildings. Two retrofitting techniques, (i) near-surface mounted steel wire rope (NSM-SWR) with further investigation on URM wallettes to get deeper understanding the URM in-plane behaviour, and (ii) FRP anchor are reported in this research thesis.

Images, UC QuakeStudies

The University of Canterbury's E-Learning team's temporary office in the James Hight building. The photographer comments, "First looks at our new temporary (maybe) office space. Our group will stay here until April or May 2011, then will move to another floor in the Central Library. More offices".

Images, UC QuakeStudies

A photograph of the partially-demolished Westende Jewellers Building on the corner of Worcester and Manchester Street. Wire fences have been placed around the building and a Southern Demolition excavator can be seen behind them.

Images, UC QuakeStudies

A photograph of the Durham Street Methodist Church. The parapet at the tip of the front gable has come loose and is leaning towards the road. Wire fencing has been placed around the building as a cordon.

Images, UC QuakeStudies

Moira Fraser standing in front of the 'Passing Time' sculpture on the corner of St Asaph Street and Madras Street. 'Passing Time' was installed outside the CPIT Building for the 6th SCAPE (a contemporary public art programme in Christchurch) a few days prior to the 22 February 2011 earthquake. The work features twisting boxes depicting each year between 1906 (the founding of CPIT) and 2010 (the date of the sculpture's production).

Images, UC QuakeStudies

Moira Fraser standing in front of the 'Passing Time' sculpture on the corner of St Asaph Street and Madras Street. 'Passing Time' was installed outside the CPIT Building for the 6th SCAPE (a contemporary public art programme in Christchurch) a few days prior to the 22 February 2011 earthquake. The work features twisting boxes depicting each year between 1906 (the founding of CPIT) and 2010 (the date of the sculpture's production).

Images, UC QuakeStudies

A photograph of the Durham Street Methodist Church. The parapet at the tip of the front gable has come loose and is leaning towards the road. Steel bracing has been placed behind the parapet to keep it from toppling.

Images, UC QuakeStudies

A photograph of the earthquake damage to the Cranmer Courts on the corner of Montreal and Kilmore Streets. On of the gables has crumbled, the masonry falling to the footpath. A tarpaulin has been used to cover the hole.

Images, UC QuakeStudies

A photograph of large cracks in the pavement in front of St Paul's School in Dallington. Liquefaction silt can also be seen. Police tape has been draped across the entrance of the building to the left.

Images, UC QuakeStudies

A photograph of a cordon across Victoria Street at the intersection with Salisbury Street. Damage to shops on both sides of the road can be seen. An excavator is parked on the left side of the road near the cordon fence.

Images, UC QuakeStudies

A photograph of the site of a demolished building in the city centre. Remnants of the building can be seen on the side of the building to the left. A Wilson Parking sign indicates that the space is going to be used for parking.

Images, UC QuakeStudies

A photograph of the earthquake damage to Cranmer Courts on the corner of Montreal and Kilmore Streets. The brick walls of the gables have crumbled at the top, and wooden bracing has been placed against them to limit further damage.

Images, UC QuakeStudies

The University of Canterbury's E-Learning team's temporary office in the James Hight building. The photographer comments, "First looks at our new temporary (maybe) office space. Our group will stay here until April or May 2011, then will move to another floor in the Central Library. This bench will disappear".

Videos, UC QuakeStudies

A video of a presentation by Professor David Johnston during the fourth plenary of the 2016 People in Disasters Conference. Johnston is a Senior Scientist at GNS Science and Director of the Joint Centre for Disaster Research in the School of Psychology at Massey University. The presentation is titled, "Understanding Immediate Human Behaviour to the 2010-2011 Canterbury Earthquake Sequence, Implications for injury prevention and risk communication".The abstract for the presentation reads as follows: The 2010 and 2011 Canterbury earthquake sequences have given us a unique opportunity to better understand human behaviour during and immediately after an earthquake. On 4 September 2010, a magnitude 7.1 earthquake occurred near Darfield in the Canterbury region of New Zealand. There were no deaths, but several thousand people sustained injuries and sought medical assistance. Less than 6 months later, a magnitude 6.2 earthquake occurred under Christchurch City at 12:51 p.m. on 22 February 2011. A total of 182 people were killed in the first 24 hours and over 7,000 people injured overall. To reduce earthquake casualties in future events, it is important to understand how people behaved during and immediately after the shaking, and how their behaviour exposed them to risk of death or injury. Most previous studies have relied on an analysis of medical records and/or reflective interviews and questionnaire studies. In Canterbury we were able to combine a range of methods to explore earthquake shaking behaviours and the causes of injuries. In New Zealand, the Accident Compensation Corporation (a national health payment scheme run by the government) allowed researchers to access injury data from over 9,500 people from the Darfield (4 September 2010) and Christchurch (22 February 2011 ) earthquakes. The total injury burden was analysed for demography, context of injury, causes of injury, and injury type. From the injury data inferences into human behaviour were derived. We were able to classify the injury context as direct (immediate shaking of the primary earthquake or aftershocks causing unavoidable injuries), and secondary (cause of injury after shaking ceased). A second study examined people's immediate responses to earthquakes in Christchurch New Zealand and compared responses to the 2011 earthquake in Hitachi, Japan. A further study has developed a systematic process and coding scheme to analyse earthquake video footage of human behaviour during strong earthquake shaking. From these studies a number of recommendations for injury prevention and risk communication can be made. In general, improved building codes, strengthening buildings, and securing fittings will reduce future earthquake deaths and injuries. However, the high rate of injuries incurred from undertaking an inappropriate action (e.g. moving around) during or immediately after an earthquake suggests that further education is needed to promote appropriate actions during and after earthquakes. In New Zealand - as in US and worldwide - public education efforts such as the 'Shakeout' exercise are trying to address the behavioural aspects of injury prevention.

Research papers, University of Canterbury Library

Geospatial liquefaction models aim to predict liquefaction using data that is free and readily-available. This data includes (i) common ground-motion intensity measures; and (ii) geospatial parameters (e.g., among many, distance to rivers, distance to coast, and Vs30 estimated from topography) which are used to infer characteristics of the subsurface without in-situ testing. Since their recent inception, such models have been used to predict geohazard impacts throughout New Zealand (e.g., in conjunction with regional ground-motion simulations). While past studies have demonstrated that geospatial liquefaction-models show great promise, the resolution and accuracy of the geospatial data underlying these models is notably poor. As an example, mapped rivers and coastlines often plot hundreds of meters from their actual locations. This stems from the fact that geospatial models aim to rapidly predict liquefaction anywhere in the world and thus utilize the lowest common denominator of available geospatial data, even though higher quality data is often available (e.g., in New Zealand). Accordingly, this study investigates whether the performance of geospatial models can be improved using higher-quality input data. This analysis is performed using (i) 15,101 liquefaction case studies compiled from the 2010-2016 Canterbury Earthquakes; and (ii) geospatial data readily available in New Zealand. In particular, we utilize alternative, higher-quality data to estimate: locations of rivers and streams; location of coastline; depth to ground water; Vs30; and PGV. Most notably, a region-specific Vs30 model improves performance (Figs. 3-4), while other data variants generally have little-to-no effect, even when the “standard” and “high-quality” values differ significantly (Fig. 2). This finding is consistent with the greater sensitivity of geospatial models to Vs30, relative to any other input (Fig. 5), and has implications for modeling in locales worldwide where high quality geospatial data is available.

Images, UC QuakeStudies

A plaque on the ground in front of the 'Passing Time' sculpture on the corner of Madras Street and St Asaph Street. The 'Passing Time' sculpture was installed outside the CPIT Building for the 6th SCAPE (a contemporary public art programme in Christchurch) a few days prior to the 22 February 2011 earthquake. The work features twisting boxes depicting each year between 1906 (the founding of CPIT) and 2010 (the date of the sculpture's production).