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Images, UC QuakeStudies

Deputy Administrator for Protection and National Preparedness at the Federal Emergency Management Agency, Tim Manning, inspecting the damaged Cranmer Centre on Armagh Street.

Images, UC QuakeStudies

Deputy Administrator for Protection and National Preparedness at the Federal Emergency Management Agency, Tim Manning, inspecting the damaged Cranmer Centre on Armagh Street.

Research papers, The University of Auckland Library

The majority of current procedures used to deduce liquefaction potential of soils rely on empirical methods. These methods have been proven to work in the past, but these methods are known to overestimate the liquefaction potential in certain regions of Christchurch due to a whole range of factors, and the theoretical basis behind these methods cannot be explained scientifically. Critical state soil mechanics theory was chosen to provide an explanation for the soil's behaviour during the undrained shearing. Soils from two sites in Christchurch were characterised at regular intervals for the critical layers and tested for the critical state lines (CSL). Various models and relationships were then used to predict the CSL and compared with the actual CSL. However none of the methods used managed to predict the CSL accurately, and a separate Christchurch exclusive relationship was proposed. The resultant state parameter values could be obtained from shear-wave velocity plots and were then developed into cyclic resistance ratios (CRR). These were subsequently compared with cyclic stress ratios (CSR) from recent Christchurch earthquakes to obtain the factor of safety. This CSL-based approach was compared with other empirical methods and was shown to yield a favourable relationship with visual observations at the sites' locations following the earthquake.

Audio, Radio New Zealand

Highlights from Radio New Zealand National's programmes for the week ending Friday 17 September. This week........criticism of some media over coverage of the Canterbury earthquake, the French five hour working week exposed, Sir Keith Park's legacy 70 years after the Battle of Britain, Cold - a new book explores this temperature good and bad and fond memories shared of the Monde Marie coffee shop in Wellington.

Audio, Radio New Zealand

A review of the week's news including: Labour struggling to put a dent in the National Party's lead in the polls, questions over Israelis caught up in the Christchurch earthquake, the latest from the Pike River Mine inquiry, electricity price rises fuelling inflation, an Auckland school wanting all students to take an iPad to class and Steve Williams dropped as Tiger Wood's caddy.

Images, UC QuakeStudies

Mitchell Brown from the USAR National Management Team farewelling the Taiwanese Search and Rescue Team at the Christchurch International Airport. The team is heading home after helping with the emergency response to the Canterbury Earthquake.

Images, UC QuakeStudies

Mitchell Brown from the USAR National Management Team farewelling the Taiwanese Search and Rescue Team at the Christchurch International Airport. The team is heading home after helping with the emergency response to the Canterbury Earthquake.

Audio, Radio New Zealand

A report into why Statistics House failed in the November earthquake has revealed a design flaw in the building, and the Government says all buildings nationwide like Statistics House will now need checking. Christchurch man Jeremy Teaguea wants to overturn the law making wearing a bike helment compulsory. Former cyclone Debbie will make her presence felt here over the next week. Weatherman Richard Green tells us what to expect. Going up for Labour and a downward turn in the polls for National. Is it really because of Jacinda Ardern and Bill English?

Images, UC QuakeStudies

Deputy Administrator for Protection and National Preparedness at the Federal Emergency Management Agency, Tim Manning, being interviewed by the media in front of the Cranmer Centre about the 22 February 2011 earthquake.

Research papers, University of Canterbury Library

A team of earthquake geologists, seismologists and engineering seismologists from GNS Science, NIWA, University of Canterbury, and Victoria University of Wellington have collectively produced an update of the 2002 national probabilistic seismic hazard (PSH) model for New Zealand. The new model incorporates over 200 new onshore and offshore fault sources, and utilises newly developed New Zealand-based scaling relationships and methods for the parameterisation of the fault and subduction interface sources. The background seismicity model has also been updated to include new seismicity data, a new seismicity regionalisation, and improved methodology for calculation of the seismicity parameters. Background seismicity models allow for the occurrence of earthquakes away from the known fault sources, and are typically modelled as a grid of earthquake sources with rate parameters assigned from the historical seismicity catalogue. The Greendale Fault, which ruptured during the M7.1, 4 September 2010 Darfield earthquake, was unknown prior to the earthquake. However, the earthquake was to some extent accounted for in the PSH model. The maximum magnitude assumed in the background seismicity model for the area of the earthquake is 7.2 (larger than the Darfield event), but the location and geometry of the fault are not represented. Deaggregations of the PSH model for Christchurch at return periods of 500 years and above show that M7-7.5 fault and background source-derived earthquakes at distances less than 40 km are important contributors to the hazard. Therefore, earthquakes similar to the Darfield event feature prominently in the PSH model, even though the Greendale Fault was not an explicit model input.

Images, UC QuakeStudies

A photograph of graffiti on one of the walls of the kitchen in Donna Allfrey's house at 406 Oxford Terrace. Parts of the graffiti read, "Quakes, a national disaster", "Recovery, a national disgrace", "Ring fn EQC, ring fn insurance", "Useless fn council", "Don't let the bastards get you down", "Avon Loop - park or developers fodder?", and "Never trust a Carter". There are also shopping and to-do lists scrawled amongst these messages.

Audio, Radio New Zealand

Highlights from Radio New Zealand National's programmes for the week ending Friday 9 September. This week .... New Zealanders getting savvy about price discrimination, sorting the News from the TV programmes, studying coral reefs to save them from extinction, we remember sports braodcaster Graeme Moody, the World of Wearable Arts travels to Hong Kong, and we have a series of features and interviews from a weekend of commemorating a year of earthquakes in Canterbury.

Audio, Radio New Zealand

Highlights from Radio New Zealand National's programmes for the week ending Friday 16 December. This week .... This week...another housing boom as property prices increase, the current state of Maori journalism, two stories from Canterbury's earthquake - a victim's recovery and a musician's return, a look back at the life of an albatross genius, the DNA of food, performing Shakespeare in te reo Maori and 200 years of wedding fashion on exhibition at Te Papa.

Images, UC QuakeStudies

Deputy Administrator for Protection and National Preparedness at the Federal Emergency Management Agency, Tim Manning, photographed in front of rubble from the damaged Cranmer Courts on Montreal Street.

Images, UC QuakeStudies

A photograph submitted by Philip Broderick Willis to the QuakeStories website. The description reads, "Christchurch National Memorial Service – watching videos of the Central City, which most of us had not seen anything of in months.".

Videos, UC QuakeStudies

A video of opera singer Placido Domingo meeting the NZSO National Youth Orchestra at the CBS Arena. Domingo talks about his experiences in the 1985 Mexico City earthquake, which claimed the lives of four of his relatives.

Videos, UC QuakeStudies

A video of a presentation by Hugh Cowan, General Manager of Reinsurance, Research and Education at EQC, at the 2016 Seismics in the City Conference. The presentation is titled, "Working Together Strengthens Understanding".The abstract for the presentation reads, "Hear how EQC led a collaborative research project in Canterbury that involved diverse stakeholders from government, council officials and insurers to homeowners, and why collaboration means that Canterbury's geotechnical data is now helping to inform research locally, nationally and around the world."