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Audio, Radio New Zealand

The Christchurch earthquakes caused devastating damage to many of the city’s creative spaces. But rising from the rubble has been the Isaac Theatre Royal under the watchful eye of Neil Cox. He’s directed the resurrection of one of  the premiere performance spaces in the country.

Research papers, University of Canterbury Library

The Mw 7.8 Kaikōura earthquake ruptured ~200 km at the ground surface across the New Zealand plate boundary zone in the northern South Island. This study was conducted in an area of ~600 km2 in the epicentral region where the faults comprise two main non-coplanar sets that strike E-NE and NNE-NW with mainly steep dips (60о-80°). Analysis of the surface rupture using field and LiDAR data provides new information on the dimensions, geometries and kinematics of these faults which was not previously available from pre-earthquake active faults or bedrock structure. The more northerly striking fault set are sub-parallel to basement bedding and accommodated predominantly left-lateral reverse slip with net slips of ~1 and ~5 m for the Stone Jug and Leader faults, respectively. The E-NE striking Conway-Charwell and The Humps faults accrued right-lateral to oblique reverse with net slips of ~2 and ~3 m, respectively. The faults form a hard-linked system dominated by kinematics consistent with the ~260° trend of the relative plate motion vector and the transpressional structures recorded across the plate boundary in the NE South Island. Interaction and intersection of the main fault sets facilitated propagation of the earthquake and transfer of slip northwards across the plate boundary zone.

Audio, Radio New Zealand

It's been a long, long wait but Christchurch's Arts Centre finally has a contemporary art gallery space again - and it's just opened. It's the latest 'reveal' in the Arts Centre post-earthquake rebuild. The new gallery's called The Central and is housed in the original Canterbury College Library. Four Christchurch families and gallerist Jonathan Smart have made it happen and artists including local sculptor Neil Dawson, photographer Peter Peryer, glitter specialist Reuben Patterson and painter Dick Frizzell are in the mix for the opening group show. There are some new names there too. Lynn Freeman speaks to The Central's Jonathan Smart and Ngai Tahu artist Lonnie Hutchinson who has work in the opening show.

Research papers, University of Canterbury Library

We present preliminary observations on three waters impacts from the Mw7.8 14th November 2016 Kaikōura Earthquake on wider metropolitan Wellington, urban and rural Marlborough, and in Kaikōura township. Three waters systems in these areas experienced widespread and significant transient ground deformation in response to seismic shaking, with localised permanent ground deformation via liquefaction and lateral spreading. In Wellington, potable water quality was impacted temporarily by increased turbidity, and significant water losses occurred due to damaged pipes at the port. The Seaview and Porirua wastewater treatment plants sustained damage to clarifier tanks from water seiching, and increased water infiltration to the wastewater system occurred. Most failure modes in urban Marlborough were similar to the 2010-2011 Canterbury Earthquake Sequence; however some rural water tanks experienced rotational and translational movements, highlighting importance of flexible pipe connections. In Kaikōura, damage to reservoirs and pipes led to loss of water supply and compromised firefighting capability. Wastewater damage led to environmental contamination, and necessitated restrictions on greywater entry into the system to minimise flows. Damage to these systems necessitated the importation of tankered and bottled water, boil water notices and chlorination of the system, and importation of portaloos and chemical toilets. Stormwater infrastructure such as road drainage channels was also damaged, which could compromise condition of underlying road materials. Good operational asset management practices (current and accurate information, renewals, appreciation of criticality, good system knowledge and practical contingency plans) helped improve system resilience, and having robust emergency management centres and accurate Geographic Information System data allowed effective response coordination. Minimal damage to the wider built environment facilitated system inspections. Note Future research will include detailed geospatial assessments of seismic demand on these systems and attendant modes of failure, levels of service restoration, and collaborative development of resilience measures.

Research papers, University of Canterbury Library

Decision making on the reinstatement of the Christchurch sewer system after the Canterbury (New Zealand) earthquake sequence in 2010–2011 relied strongly on damage data, in particular closed circuit television (CCTV). This paper documents that process and considers how data can influence decision making. Data are analyzed on 33,000 pipes and 13,000 repairs and renewals. The primary findings are that (1) there should be a threshold of damage per pipe set to make efficient use of CCTV; (2) for those who are estimating potential damage, care must be taken in direct use of repair data without an understanding of the actual damage modes; and (3) a strong correlation was found between the ratio of faults to repairs per pipe and the estimated peak ground velocity. Taken together, the results provide evidence of the extra benefit that damage data can provide over repair data for wastewater networks and may help guide others in the development of appropriate strategies for data collection and wastewater pipe decisions after disasters.

Research papers, University of Canterbury Library

This paper presents on-going challenges in the present paradigm shift of earthquakeinduced ground motion prediction from empirical to physics-based simulation methods. The 2010-2011 Canterbury and 2016 Kaikoura earthquakes are used to illustrate the predictive potential of the different methods. On-going efforts on simulation validation and theoretical developments are then presented, as well as the demands associated with the need for explicit consideration of modelling uncertainties. Finally, discussion is also given to the tools and databases needed for the efficient utilization of simulated ground motions both in specific engineering projects as well as for near-real-time impact assessment.

Research papers, University of Canterbury Library

The M7.8 Kaikoura Earthquake in 2016 presented a number of challenges to science agencies and institutions throughout New Zealand. The earthquake was complex, with 21 faults rupturing throughout the North Canterbury and Marlborough landscape, generating a localised seven metre tsunami and triggering thousands of landslides. With many areas isolated as a result, it presented science teams with logistical challenges as well as the need to coordinate efforts across institutional and disciplinary boundaries. Many research disciplines, from engineering and geophysics to social science, were heavily involved in the response. Coordinating these disciplines and institutions required significant effort to assist New Zealand during its most complex earthquake yet recorded. This paper explores that effort and acknowledges the successes and lessons learned by the teams involved.

Audio, Radio New Zealand

Lyttelton was hit harder than most by the Christchurch earthquakes - particularly the Lyttelton Museum. But now it's back - triumphantly, we may say! - with a little help from its friends, past and present. Key historical figures in Lyttelton's history are brought back to life in a new exhibition by Julia Holden - Lyttelton Redux - which has just opened at Canterbury Museum.

Audio, Radio New Zealand

Over the summer on The Weekend we've been talking to recyclers and upcyclers, people who like the Wombles, are making good use of the things that they find, things that the everyday folks leave behind. This is true of Christchurch builder, artist and furniture maker, Tim McGurk. He says he works with whatever junk and materials he can find. Tim crafted several items from the materials salvaged from an earthquake damaged Christchurch house, as part of the Whole House Reuse project. He also made the news when he made a Star Wars inspired X-wing sculpture/lamp out of salvaged rimu.

Audio, Radio New Zealand

Christchurch remembers six years on from the deadly earthquake. What panelists Ali Jones and James Nokise have been up to. John Gray from the Home Owners and Buyers Association believes the mayor is getting advice from self interest groups looking to shift the focus from their own shortcomings. Police in Hawkes Bay discovered 300 stolen garden gnomes with a growing trend to sell them on to fund meth purchases. Pie eating goalie in the UK has resigned for taking part in the bet that he would eat a pie during his team's match.

Audio, Radio New Zealand

Conservationist, forager, angler and former fisheries observer Peter Langlands talks about the many threats to our lakes and waterways. Lynn Freeman asked the Cantabrian how the earthquakes affected Christchurch birds, as there was talk that they left the city.

Audio, Radio New Zealand

There's been widespread dismay at the decision not to prosecute anyone for the deaths of 115 people in the CTV building collapse during the 2011 Canterbury earthquake. Police say it was a tough decision - they wanted to hold someone to account but there simply wasn't the evidence to warrant a prosecution.

Audio, Radio New Zealand

The Christchurch City Council has confirmed the demolition of the earthquake-damaged Lancaster Park sports stadium will begin this year. Lancaster Park Cricket club was one of the sports ground's first tenants when it was established in 1881. An act of parliament means the ground has to be used for sport and recreation. "We're certainly looking foward to being able to get back on the ground and for it to be turned back into green space," Ric Horsfall from the cricket club says.

Audio, Radio New Zealand

After the magnitude 7.1 earthquake struck Canterbury on 4 September 2010, most media reports claimed that no lives had been lost. But In fact, this first earthquake killed at least 3000 chickens, eight cows, one dog, a lemur and 150 aquarium fish. University of Canterbury associate professor Annie Potts, along with co-author Donelle Gadenne, wrote Animals in Emergencies: Learning from the Christchurch Earthquakes, revealing what happened to the animals during and after the series of quakes. Annie Potts will give a public lecture, 'Animals and natural disasters: Learning from recent earthquakes', on Thursday 16 March, 7pm at UC Ilam campus, Christchurch. Register to attend free at: www.canterbury.ac.nz/ucconnect

Audio, Radio New Zealand

As a three-year-old in China, Quin Tang's mother was shot in front of her and her father taken away. After moving to Christchurch 25 years ago, she walked out of an abusive marriage with two young children, no money and speaking little English. Tang then attended Canterbury University, teaching herself to read English from the text books there. She attained four degrees with an A+ average, and began working as a psychiatrist and counsellor. Quin was working in the CTV building when it collapsed. She took two weeks off work to recover, then came back and began counselling other victims of the Christchurch earthquakes. She has written and self-published the story of her life, called Half a Walnut Tree.

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?