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Images, eqnz.chch.2010

Low tide on the Avon River at New Brighton/Bexley. Note the original bank and the rock wall slipage on right. The white additions were added in March and April 2011 to protect the properties behind from flooding. Ultimately this area was "red zoned" with all houses removed or to be removed and the ground left till a rehabilitation method can ...

Audio, Radio New Zealand

Topics - If you like a quiet time, head for the Spanish city of Seville. Seville's silent summer, they're calling this. They've banned outdoor noise. Seville's been noisy; flamenco singers, old men playing dominoes, bar patrons chatting. The city councillors have now banned most of this, and they seem to have support. Gerry Brownlee the Earthquake Recovery Minister will have the final say over what happens to a piece of land near Christchurch airport, on the corner of Memorial Ave and Russley Road. It's currently zoned as rural, but industrial development could be on the cards. The NYT wonders why with so much violence in movies and games, the big Comic-con pop entertainment convention in San Diego is so peaceful. John Banks snapped phone-driving, we saw at the weekend. John Banks accused of breaking the law again, this time for using a cellphone while driving.

Images, eqnz.chch.2010

With the land dropping about 1metre to 1.4metres after the earthquakes, a few roads besides the Avon and Heathcote Rivers are flooded with very high tides. Extra stop banks (on right) erected after the quakes have helped, but the road is now well below high water level. New Brighton Road, just short of New Brighton. The Pages Road bridge may b...

Research papers, University of Canterbury Library

One of the less understood geotechnical responses to the cyclic loading from the MW6.2 Christchurch Earthquake, on the 22nd of February 2011, is the fissuring in the loessial soil-mantled, footslope positions of the north-facing valleys of the Port Hills. The fissures are characterized by mostly horizontal offset (≤500mm), with minor vertical displacement (≤300mm), and they extend along both sides of valleys for several hundred metres in an approximately contour-parallel orientation. The fissure traces correspond to extensional features mapped in other studies. Previous studies have suggested that the fissures are the headscarps of incipient landslides, but the surface and subsurface features are not typical of landslide movement. Whilst there are some features that correlate with landslide movement, there are many features that contradict the landslide movement hypothesis. Of critical importance to this investigation was the fact that there are no landslide flanks, there has been no basal shear surface found, there is little deformation in the so-called ‘landslide body’, and there have been no recorded zones of low shear strength in the soil deposit that are indicative of a basal shear surface. This thesis is a detailed geotechnical study on the fissures along part of Ramahana Road in the Hillsborough Valley, Christchurch. Shallow and deep investigation methods found that the predominant soil is loess-colluvium, to depths of ~20m, and this soil has variable geotechnical characteristics depending on the layer sampled. The factor that has the most influence on shear strength was found to be the moisture content. Direct shear-box testing of disturbed, recompacted loess-colluvium found that the soil had a cohesion of 35-65kPa and a friction angle of 38-43° when the soil moisture content was at 8-10%. However when the moisture content was at 19-20% the soil’s cohesion decreased to 3-5kPa and its friction angle decreased to 33-38°, this moisture content is at or slightly above the plastic limit. An electrical resistivity geophysical survey was conducted perpendicular to multiple fissure traces and through the compressional zone at 17 Ramahana Road. The electrical resistivity line found that there was an area of high resistivity at the toe of the slope, and an area of high conductivity downslope of this and at greater depths. This area correlated to the compressional zone recorded by previous studies. Moisture content testing of the soil in these locations showed that the soil in the resistive area was relatively dry (9%) compared to the surrounding soil (13%), whilst the soil in the conductive area was relatively wet (22%)compared to the surrounding soil (19%). Density tests of the soil in the compressional zone recorded that the resistive area had a higher dry density than the surrounding soil (~1790 kg/m3 compared to ~1650 kg/m3). New springs arose downslope of the compressional zone contemporaneously with the fissures, and it is interpreted that these have arisen from increased hydraulic head in the Banks Peninsula bedrock aquifer system, and earthquake induced-bedrock fracturing. A test pit was dug across an infilled fissure trace at 17 Ramahana Road to a depth of 3m. The fissure trace had an aperture of 450-470mm at the ground surface, but it gradually lost aperture with depth until 2.0-2.1m where it became a segmented fissure trace with 1-2mm aperture. A mixed-colluvium layer was intercepted by the fissure trace at 2.4m depth, and there was no observable vertical offset of this layer. The fissure trace was at an angle of 78° at the ground surface, but it also flattened with depth, which gave it a slightly curved appearance. The fissure trace was at an assumed angle of 40-50° near the base of the test pit. Rotational slide, translational slide and lateral spread landslide movement types were compared and contrasted as possibilities for landslide movement types, whilst an alternative hypothesis was offered that the fissures are tensile failures with a quasi-toppling motion involving a cohesive block of loessial soil moving outwards from the slope, with an accommodating compressional strain in the lower less cohesive soil. The mechanisms behind this movement are suggested to be the horizontal earthquake inertia forces from the Christchurch Earthquake, the static shear stress of the slope, and bedrock uplift of the Port Hills in relation to the subsidence of the Christchurch city flatlands. Extremely high PGA is considered to be a prerequisite to the fissure trace development, and these can only be induced in the Hillsborough Valley from a Port Hills Fault rupture, which has a recurrence interval of ~10,000 years. The current understanding of how the loess-colluvium soil would behave under cyclic loading is limited, and the mechanisms behind the suggested movement type are not completely understood. Further research is needed to confirm the proposed mechanism of the fissure traces. Laboratory tests such as the cyclic triaxial and cyclic shear test would be beneficial in future research to quantitatively test how the soil behaves under cyclic loading at various moisture contents and clay contents, and centrifuge experiments would be of great use to qualitatively test the suggested mode of movement in the loessial soil.

Research papers, University of Canterbury Library

Recent tsunami events have highlighted the importance of effective tsunami risk management strategies (including land-use planning, structural and natural mitigation, warning systems, education and evacuation planning). However, the rarity of tsunami means that empirical data concerning reactions to tsunami warnings and evacuation behaviour is rare when compared to findings for evacuations from other hazards. More knowledge is required to document the full evacuation process, including responses to warnings, pre-evacuation actions, evacuation dynamics, and the return home. Tsunami evacuation modelling has the potential to inform evidence-based tsunami risk planning and response. However, to date, tsunami evacuation models have largely focused on the timings of evacuations, rather than behaviours of those evacuating. In this research, survey data was gathered from coastal communities in Banks Peninsula and Christchurch, New Zealand, relating to behaviours and actions during the November 14th 2016 Kaikōura earthquake tsunami. Survey questions asked about immediate actions following the earthquake shaking, reactions to tsunami warnings, pre-evacuation actions, evacuation dynamics and details on congestion. This data was analysed to characterise trends and identify factors that influenced evacuation actions and behaviour, and was further used to develop a realistic evacuation model prototype to evaluate the capacity of the roading network in Banks Peninsula during a tsunami evacuation. The evacuation model incorporated tsunami risk management strategies that have been implemented by local authorities, and exposure and vulnerability data, alongside the empirical data collected from the survey. This research enhances knowledge of tsunami evacuation behaviour and reactions to tsunami warnings, and can be used to refine evacuation planning to ensure that people can evacuate efficiently, thereby reducing their tsunami exposure and personal risk.

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Aftermath of the earthquake in Christchurch where the cleanup has begun. Teams of building inspectors gathered at the Linwood Service Centre before heading into the eastern suburbs en masse. Jeanette Banks, centre right, shares the relief of having had her property inspected with sister and Red Cross member Sandie Horne, down from Nelson. Napier building inspector, Gary Marshall, left, and City Council planner, Kent Wilson at right".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Aftermath of the earthquake in Christchurch where the cleanup has begun. Teams of building inspectors gathered at the Linwood Service Centre before heading into the eastern suburbs en masse. Jeanette Banks, centre right, shares the relief of having had her property inspected with sister and Red Cross member Sandie Horne, down from Nelson. Napier building inspector, Gary Marshall, left, and City Council planner, Kent Wilson at right".

Audio, Radio New Zealand

Pike River Mine will be put up for sale soon, People allowed into another area of Christchurch cordon, Relative, friends of quake lost describe pain of waiting, Doubts swirl around Rugby World Cup in Christchurch and the ongoing questions surrounding the death of a New Zealander and other tourists in Thailand, Earthquake puts unprecedented pressure on Reserve Bank, Sovereign may not be last failure in struggling building sector, Space shuttle Discovery lands safely in Florida.

Audio, Radio New Zealand

Police prosecutor jailed for dealing drugs;Sharebrokers getting late rush of MRP investors;Pressure mounts on MP Aaron Gilmore;Police rule out anyone else being at risk;Mother of electrocuted son is pleased that electricians been named and shamed;NZ Post signals to Government it will need to invest in KiwiBank in two years;Judge says young killer could have made something of himself;Elderly in Christchurch say they are low on priority list for earthquake repairs and payouts.

Images, Alexander Turnbull Library

The New Zealand public contemplate a dead drought stricken landscape. As well as lack of water, there is a lack of moderate pay scales for CEOs, satisfaction with EQC, quality TV, generous insurance companies, brilliant Solid Energy management, the integrity of John Banks (and by implication that of other MPs), quality education ministers, worthwhile overseas trips by the Prime Minister, 'clever' NZ First MPs and a boost for the West Coast among others. Considered from a Canterbury perspective, the drought of early 2013 becomes a symbol for many of the recent political and social ailments afflicting the land. Quantity: 1 digital cartoon(s).

Audio, Radio New Zealand

A review of the week's news including: national earthquake memorial service announced, former defence chief to be new Governor General, Reserve Bank slashes official cash rate, Christchurch businesses say OCR cut alone won't save them, mounting concern over Christchurch World Cup prospects, government says 10,000 Christchurch homes will be demolished, alarm over possibility of mass demolition in CBD, international crews head home, petrol prices at three year high, Pike River mine receivers take control from police and boulder sold for thousands in aid of Christchurch

Research papers, University of Canterbury Library

The empirical liquefaction triggering chart of Idriss and Boulanger (2008) is compared to direct measurements of the cyclic resistance of Christchurch silty sands via undisturbed and reconstituted lab specimens. Comparisons suggest that overall there is a reasonable agreement between the empirical triggering curve and the interpreted test data. However, the influence of fines on cyclic resistance appears to be over-predicted by the empirical method, particularly for non-plastic silty sands that are commonly encountered in flood over-bank deposits in Christchurch and nearby settlements

Audio, Radio New Zealand

Thousands of people in Christchurch and around the country paused at 12.51 on Monday afternoon to mark a decade since the February 22 magnitude 6.3 earthquake which claimed 185 lives. It was 10 years ago today when an ordinary Christchurch day turned to hell for so many. But in contrast to the harrowing scenes and sounds of that day, today a large peaceful crowd gathered at the Civic Memorial Service on the banks of the Avon River under large oak trees. Reporter Sally Murphy and cameraman Nate McKinnon were there.

Audio, Radio New Zealand

What the Panelists Finlay MacDonald and Peter Fa'afiu have been up to. The Reserve Bank has cut the Official Cash Rate to a record low 2%. Another book about retired All Blacks captain Richie McCaw has come out. The NZ Sevens rugby team is now officially out of medal contention. Are people all that interested in the Olympic games? Fairfax and Sky TV are in court over copyright issues. Christchurch City Councillor Ali Jones talks about what the cull of EQC staff will mean for life in the post-earthquake city.

Audio, Radio New Zealand

DAVID SHEARER to the Minister for State Owned Enterprises: Has the Government met the five criteria the Prime Minister laid out for proceeding with asset sales? Dr RUSSEL NORMAN to the Minister of Finance: Will New Zealanders have money taken from their bank accounts to fund a bank bailout under his proposed Open Bank Resolution scheme? TODD McCLAY to the Minister of Finance: What reports has he received on New Zealand's balance of payments? Hon ANNETTE KING to the Minister of Health: Does he stand by all his statements regarding "Better, Sooner, More Convenient" health care; if not, why not? MARK MITCHELL to the Minister of Police: What reports has she received from Police on the success of pre-charge warnings? PHIL TWYFORD to the Minister of Housing: Why did he tell the House that, even if the Auckland plan took effect in September, new subdivisions would not be available until 2016-17, when the advice he tabled from Roger Blakely of Auckland Council shows that if the unitary plan takes effect in September new land would be available two years earlier? ALFRED NGARO to the Minister for Social Development: How will the Social Security (Benefit Categories and Work Focus) Amendment Bill back people off welfare and into work? GRANT ROBERTSON to the Prime Minister: Does he stand by all his statements on the actions and involvement of the Department of the Prime Minister and Cabinet and the Government Communications and Security Bureau in Operation Debut? SCOTT SIMPSON to the Minister of Health: What is the Government doing to extend access to free flu vaccines? METIRIA TUREI to the Minister for Social Development: Does she have an obligation, as Social Development Minister, to ensure all policy she is responsible for will be good for children and their families? Hon KATE WILKINSON to the Minister for Primary Industries: What announcement has he made on the drought in New Zealand? Rt Hon WINSTON PETERS to the Minister for Canterbury Earthquake Recovery: Have allegations of fraud and corruption involving Canterbury earthquake recovery and rebuild contracts been raised with him as Minister; if so, what specific steps has he taken to address them?

Audio, Radio New Zealand

A 22-year-old self-employed dairy farmer hopes his success through winning a new Maori farming award will inspire other young troubled Maori to follow their dreams; The Chairperson of Nelson's first Maori language immersion school says there's been a shift in attitude among members of the public - who now understand the school won't be exclusive; The former National MP Sandra Goudie is calling for Waikato ratepayers to oppose two Maori seats that the Regional Council is introducing at next year's election; Liquefaction from the Christchurch earthquakes may have unearthed four taonga on the banks of the Heathcote river.

Audio, Radio New Zealand

The former National MP Sandra Goudie is calling for Waikato ratepayers to oppose two Maori seats that the Regional Council is introducing at next year's election; The Chairperson of Nelson's first Maori language immersion school says there's been a shift in attitude among members of the public - who now understand the school won't be exclusive; A 22-year-old self-employed dairy farmer hopes his success through winning a new Maori farming award will inspire other young troubled Maori to follow their dreams; Liquefaction from the Christchurch earthquakes may have unearthed four taonga on the banks of the Heathcote river.

Images, Alexander Turnbull Library

Under the caption 'Best value for money?' is a football stadium displaying a red cross. From within a voice proclaims the advantages of having a combined covered stadium, hospital and blood bank. Under CERA, the Christchurch Central Development Unit had planned for a covered sports stadium, with attached facilities and shops as one of the key sites in the Christchurch rebuild after the 2010 and 2011 earthquakes. The 'blood bin' refers to the recent practice in rugby of sending off players with flesh wounds. There were also plans for a new hospital. Quantity: 1 digital cartoon(s).

Audio, UC QuakeStudies

Part four of the audio that makes up Gap Filler's 29th project, the Transitional City Audio Tour. This part of the tour begins in the Re:Start Mall on Cashel Street and includes commentary on the performance Last Day of Mankind at the Bridge of Remembrance. The tour then moves up Oxford Terrace, along the banks of the Avon River, until it reaches Worcester Boulevard. Turning left, it travels down Worcester Boulevard, past the Christchurch Art Gallery, providing commentary on the new and old art in the area, and the Christchurch Arts Centre. Lastly, it moves up Montreal towards Cranmer Square.

Research papers, The University of Auckland Library

The Darfield earthquake caused widespread damage in the Canterbury region of New Zealand, with the majority of damage resulting from liquefaction and lateral spreading. One of the worst hit locations was the small town of Kaiapoi north of Christchurch, an area that has experienced liquefaction during past events and has been identified as highly susceptible to liquefaction. The low lying town sits on the banks of the Kaiapoi River, once a branch of the Waimakariri, a large braided river transporting gravelly sediment. The Waimakariri has been extensively modified both by natural and human processes, consequently many areas in and around the town were once former river channels.

Images, Alexander Turnbull Library

Text reads 'Uses for Christchurch rubble?...' The cartoon shows a bridge made partially of earthquake rubble leading from Lyttelton Harbour to Diamond Harbour on Banks Peninsula. Someone in a van says 'At long last... A bridge to Diamond Harbour!' And someone else says 'And somewhere to fish!' Context - Rubble from the earthquake may be used for the construction of watersides and bridges. This cartoon is a fanciful use for Christchurch earthquake rubble. Currently a ferry connects Diamond Harbour to Lyttelton, on the harbour's northern shore. In combination with buses from Lyttelton to downtown Christchurch, this allows residents of Diamond Bay to commute to the city. Quantity: 1 digital cartoon(s).

Images, UC QuakeStudies

The temporary ASB branch in the Re:Start mall. The photographer comments, "The new temporary city mall has been open in Christchurch now for a week. Buildings damaged in the earthquake have been demolished and replaced with cargo containers to create a new, temporary, Cashel Mall. I visited the mall yesterday and was quite impressed with what they have done. The cargo containers have been nicely converted, brightly painted and smartly branded to create some good looking stores ... ASB is the only bank to grab a container, which is fair enough seeing as they appear to be a large sponsor of the mall. The 'Re:START' Cashel Mall signs also display the tag line 'Supported by ASB'".

Audio, Radio New Zealand

In this edition: The report into the collapse of the CTV building in the Christchurch earthquake a year ago is released, the Maori Council lodges claims with the Waitangi tribunal that could throw a spanner in the works of the Government's asset sales programme, the Earthquake Recovery Minister nearing the end of his tether with the Christchurch City Council, more from the Pike River Royal Commission, Radio Live could face a potential one hundred thousand dollar fine under the electoral act over John Key's hour long radio show in the run up to the 2011 election, banks lift their collective profits for the second half of 2011 by 25 percent and the winners are announced at the 2012 Halberg Awards.

Audio, Radio New Zealand

Topics - ready with the pumps at last this time, but thankfully not as much rain - so far - as feared for people in the low-lying Flockton Basin in Christchurch. Labour's proposing a special court be set up just to deal with earthquake insurance claims, as part of a policy around the Christchurch rebuild. The policy would see an Earthquake Court established to try to speed up the settling of 9,755 outstanding "over cap" insurance claims. John Banks will be gone by Friday from Parliament, at the behest of the ACT party with a gentle nudge from the Nats as well. The PM thinks it's a joke that the Civilian political party, run by Ben Uffindell and named after his satirical webite, will receive $33,000 of taxpayer funding for the coming election.

Audio, Radio New Zealand

Kim Hill talks to Sam Crofskey, the owner of C1 Espresso in the Christchurch CBD, which reopened in 2012 after the Canterbury earthquakes and will celebrate its twentieth anniversary this year. He spoke on the WORD Christchurch panel, How Are We Doing, Christchurch?, and this week launched Let's Take a Walk, a pop-up book for children about the quakes that he created with his wife Fleur and illustrator Hannah Beehre. He is joined by Joseph Hullen (Ngai Tuahuriri, Ngai Tahu), a hunter gatherer, fisherman, explorer, kaitiaki and storyteller who has spent a lifetime gathering traditional kai and listening to stories about his hapu. He is a whakapapa researcher for Te Runanga o Ngai Tahu, and is leading three sold-out walking tours during WORD Christchurch along the banks of the Otakaro (Avon River), uncovering the city's history.

Research papers, University of Canterbury Library

The last few years have seen the emergence of a range of Digital Humanities projects concerned with archiving material related to traumatic events and disasters. The 9/11 Digital Archive, The Hurricane Memory Bank and the CEISMIC Canterbury Earthquakes Digital Archive are a few such projects committed to collecting, curating and making available disaster-related images, stories and media for the purposes of commemoration, teaching and research. In this paper Paul Millar 1. examines the value of such projects in preserving post-disaster memories, 2. explores some differences between passive and active digital memory projects, and 3. asks whether even the most determinedly open and inclusive digital memory project can preserve its values when issues of race, class, gender, politics and economics impact upon its activities.

Audio, Radio New Zealand

Questions to Ministers and lt;br / and gt; and lt;br / and gt; 1. Hon ANNETTE KING to the Prime Minister: Is he satisfied that all systems set up pursuant to commitments he has given to assist residents following the Christchurch earthquake are appropriate and working? and lt;br / and gt; and lt;br / and gt; 2. DAVID BENNETT to the Minister of Finance: What do this morning's Reserve Bank economic forecasts show? and lt;br / and gt; and lt;br / and gt; 3. Hon DAVID CUNLIFFE to the Minister of Finance: By what amount has the Reserve Bank lowered the official cash rate today, and what reason has the Bank given for this action? and lt;br / and gt; and lt;br / and gt; 4. GARETH HUGHES to the Minister of Finance: What will be the impact of the recent fuel price rise on the New Zealand economy, including impacts on GDP, consumer spending and the current account? and lt;br / and gt; and lt;br / and gt; 5. Hon DAVID PARKER to the Acting Minister for Economic Development: Has he been advised by the Prime Minister whether his appointment as Acting Minister for Economic Development is temporary or expected to carry on to the election? and lt;br / and gt; and lt;br / and gt; 6. KATRINA SHANKS to the Minister of Transport: What action is the Government taking to improve Wellington's train network? and lt;br / and gt; and lt;br / and gt; 7. Hon DAMIEN O'CONNOR to the Prime Minister: Can he assure the families of those killed in the Pike River Mine disaster that Government funding will be available for the recovery of bodies, given the mine is now in receiver's hands. and lt;br / and gt; and lt;br / and gt; 8. COLIN KING to the Minister of Civil Defence: Is the Government satisfied with the provision of replacement toilets for earthquake-affected Christchurch residents? and lt;br / and gt; and lt;br / and gt; 9. CAROL BEAUMONT to the Minister of Women's Affairs: Can she outline a significant improvement for women initiated by the current Government? and lt;br / and gt; and lt;br / and gt; 10. ALLAN PEACHEY to the Minister of Education: What provisions have been made to ensure continuity of early childhood education and schooling in the Christchurch region since the 22 February earthquake? and lt;br / and gt; and lt;br / and gt; 11. Hon TREVOR MALLARD to the Minister for Communications and Information Technology: What advice did he receive on any perceived conflict of interest before he took part in the Cabinet decision that led to the deferral of the requirement for MediaWorks to pay its frequency licence to the Crown? and lt;br / and gt; and lt;br / and gt; 12. KANWALJIT SINGH BAKSHI to the Minister of Internal Affairs: What reports has he received on the progress of urban search and rescue and firefighter teams working in Christchurch following the 22 February earthquake?

Research papers, University of Canterbury Library

In the aftermath of the 2010-2011 Canterbury Earthquake Sequence (CES), the location of Christchurch-City on the coast of the Canterbury Region (New Zealand) has proven crucial in determining the types of- and chains of hazards that impact the city. Very rapidly, the land subsidence of up to 1 m (vertical), and the modifications of city’s waterways – bank sliding, longitudinal profile change, sedimentation and erosion, engineered stop-banks… - turned rainfall and high-tides into unprecedented floods, which spread across the eastern side of the city. Within this context, this contribution presents two modeling results of potential floods: (1) results of flood models and (2) the effects of further subsidence-linked flooding – indeed if another similar earthquake was to strike the city, what could be the scenarios of further subsidence and then flooding. The present research uses the pre- and post-CES LiDAR datasets, which have been used as the boundary layer for the modeling. On top of simple bathtub model of inundation, the river flood model was conducted using the 2-D hydrodynamic code NAYS-2D developed at the University of Hokkaido (Japan), using a depth-averaged resolution of the hydrodynamic equations. The results have shown that the area the most at risk of flooding are the recent Holocene sedimentary deposits, and especially the swamplands near the sea and in the proximity of waterways. As the CES drove horizontal and vertical displacement of the land-surface, the surface hydrology of the city has been deeply modified, increasing flood risks. However, it seems that scientists and managers haven’t fully learned from the CES, and no research has been looking at the potential future subsidence in further worsening subsidence-related floods. Consequently, the term “coastal quake”, coined by D. Hart is highly topical, and most especially because most of our modern cities and mega-cities are built on estuarine Holocene sediments.

Research papers, University of Canterbury Library

Recent field investigations were carried out to define the shear wave velocity (VS) profile and site periods across the Canterbury region, supplementing earlier efforts in urban Christchurch. Active source surface wave testing, ambient wave field (passive) and H/V spectral ratio methods were used to characterise the soil profile in the region. H/V spectral ratio peaks indicate site periods in the range of 5-7 seconds across much of the Canterbury Plains, broadly consistent with those based on a 1D velocity model for the region. Site periods decrease rapidly in the vicinity of the Canterbury foothills and the Banks Peninsula outcrops. In Christchurch, the Riccarton Gravels result in a significant mode of vibration that has a much shorter period than the site period of the entire soil column down to basement rock.