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Images, UC QuakeStudies

A photograph of the Speaker's Chair on display in the Canterbury Quakes exhibition at the Canterbury Museum. The Speaker's Chair stood at the southern end of the Stone Chamber of the Canterbury Provincial Chambers, and survived the 22 February 2011 earthquake despite the damage to the chamber.

Images, UC QuakeStudies

The southern side of the Christ Church Cathedral with boarded up windows and damage to the roof above both of the transepts. Damaged masonry has been piled on the ground in front and one of the spires has been removed and braced with steel in the foreground.

Audio, Radio New Zealand

Katy Gosset meets one of Christchurch's top tailors. Mark van Roosmalen may have lost his premises in the earthquake but he's busier than ever, turning out bespoke garments for the city's style-conscious. Katy finds that amidst the high-viz vests of Christchurch there's still plenty of room for a sharp suit.

Images, eqnz.chch.2010

Taken during a scenic flight over Christchurch, New Zealand, 3 months after the deadly earthquake of 22 February, 2011. Much of the inner city CBD is still cordoned off and will be for some time. About 900 buildings are set for demolition. Taken aboard the Southern DC3 www.so...

Images, eqnz.chch.2010

Taken during a scenic flight over Christchurch, New Zealand, 3 months after the deadly earthquake of 22 February, 2011. Much of the inner city CBD is still cordoned off and will be for some time. About 900 buildings are set for demolition. Taken aboard the Southern DC3 www.so...

Images, eqnz.chch.2010

Taken during a scenic flight over Christchurch, New Zealand, 3 months after the deadly earthquake of 22 February, 2011. Much of the inner city CBD is still cordoned off and will be for some time. About 900 buildings are set for demolition. Taken aboard the Southern DC3 www.so...

Images, eqnz.chch.2010

Taken during a scenic flight over Christchurch, New Zealand, 3 months after the deadly earthquake of 22 February, 2011. Much of the inner city CBD is still cordoned off and will be for some time. About 900 buildings are set for demolition. Taken aboard the Southern DC3 www.so...

Images, UC QuakeStudies

A photograph of an exhibition sign next to the Speaker's Chair on display in the Canterbury Quakes exhibition at the Canterbury Museum. The Speaker's Chair stood at the southern end of the Stone Chamber of the Canterbury Provincial Chambers, and survived the 22 February 2011 earthquake despite the damage to the chamber.

Audio, Radio New Zealand

Christchurch is home to many diverse ethnic groups whose voices have sometimes gone unheard in the aftermath of the earthquakes and the city's rebuild plans. Katy Gosset visits a gathering in Christchurch's battered eastern suburbs to hear their thoughts on post-quake life and the future of their adopted home.

Audio, Radio New Zealand

Elderly residents in Lyttelton have been enjoying free meals while their supermarket is closed and their town is being rebuilt. After February's earthquake, locals found that many of the community's older members felt isolated and had no means of buying groceries for themselves. Christchurch correspondent Katy Gosset finds that Lyttelton is a town that looks after its own.

Images, UC QuakeStudies

A photograph captioned by BeckerFraserPhotos, "What a view from Nicholson Park on Scarborough. People enjoying Sumner Beach with South Brighton spit across the estuary entrance, the estuary at low tide and behind, the settling ponds and the city with its abundance of trees. Snow covered Southern Alps as a backdrop. Pity about the smoke haze this afternoon".

Images, Canterbury Museum

One landscape colour digital photograph taken on 26 May 2013 showing the southern cliffs of Godley Head, taken from the middle of the shipping channel. Some earthquake damage to the cliffs is visible. There were several major rock falls along the coastal cliffs near Christchurch and Lyttelton Harbour. At Godley Head these caused damage to the ...

Images, eqnz.chch.2010

Overlooking McCormacks bay out across the city with the Southern Alps as a backdrop. There is still a strong effect from the July 11, 2011 Volcanic erruption (Puyehue) in Chile. Ash made it over to New Zealand causing very strong colours at sunset. The colours have not been artificially changed and its not a mash up. The parts of the city (and...

Images, eqnz.chch.2010

Hotel Grand Chancellor - Leaning 1m to the east, demolition will start about mid June and is expected to take 10 months to complete at a cost of approx NZ$10m. It will be the biggest & tallest demolition project in New Zealand. Taken during a scenic flight over Christchurch, New Zealand, 3 months after the deadly earthquake of 22 February, ...

Videos, NZ On Screen

‘Moa's Ark' set sail 80 million years ago. David Bellamy becomes an ancient mariner and retraces the voyage of the islands of New Zealand (using contemporary science as his guide). In this first episode he finds out why New Zealand is called the Shaky Isles, gets face to face with the "living fossil" the tuatara, is inspired by meat pies, and discovers geography as he competes in the annual Coast to Coast race over the Southern Alps — with directional and gorse eradication aid coming from legendary race organiser Robin Judkins.

Audio, Radio New Zealand

Architect Bob Burnett is part of a class action group yet to resolve claims with Southern Response. The group argues the insurer, which was established to settle outstanding AMI claims, has systematically short-changed them. Mr Burnett said the insurer had done more damage to his home than had been done in the earthquakes. The 40 members of the class action group head to court next Wednesday.

Images, eqnz.chch.2010

Damage to the Hotel Grand Chancellor can be seen in the middle. At the bottom left is the lift shaft (now fully demolished) of the CTV building which claimed over 100 lives when it collapsed in the earthquake. Taken during a scenic flight over Christchurch, New Zealand, 3 months after the deadly earthquake of 22 February, 2011. Much of the inn...

Images, eqnz.chch.2010

The current state of the Christchurch Cathedral can be seen in the middle. The spire collapsed as a result of the earthquake. Taken during a scenic flight over Christchurch, New Zealand, 3 months after the deadly earthquake of 22 February, 2011. Much of the inner city CBD is still cordoned off and will be for some time. About 900 buildings are ...

Research papers, The University of Auckland Library

Terminus calving of icebergs is a common mass-loss mechanism from water-terminating glaciers globally, including the lake-calving glaciers in New Zealand’s central Southern Alps. Calving rates can increase dramatically in response to increases in ice velocity and/or retreat of the glacier margin. Here, we describe a large calving event (c. 4.5 × 106 m3) observed at Tasman Glacier, which initiated around 30 min after the MW 6.2 Christchurch earthquake of 22 February 2011. The volume of this calving event was equalled or exceeded only once in a subsequent 13-month-long study. While the temporal association with the earthquake remains intriguing, the effects of any preconditioning factors remain unclear.

Audio, Radio New Zealand

Matthew McEachen should have had most of his life ahead of him when he died on February 22, 2011. The 25-year-old was a talented artist and designer, putting his skills to good use at the Southern Ink tattoo shop on Colombo St. But when the earthquake struck, Bruce, Jeanette and Sarah McEachen lost their much-loved son and older brother. Ten years on, Matti's legacy lives on. Checkpoint reporter Nick Truebridge and cameraman Nate McKinnon with his story.

Research papers, Victoria University of Wellington

The last seven years have seen southern New Zealand a ected by several large and damaging earthquakes: the moment magnitude (MW) 7.8 Dusky Sound earthquake on 15 July 2009, the MW 7.1 Dar eld (Canterbury) earthquake on 4 September 2010, and most notably the MW 6.2 Christchurch earthquake on 22 February 2011 and the protracted aftershock sequence. In this thesis, we address the postseismic displacement produced by these earthquakes using methods of satellite-based geodetic measurement, known as Interferometric Synthetic Aperture Radar (InSAR) and Global Positioning System (GPS), and computational modelling.  We observe several ground displacement features in the Canterbury and Fiordland regions during three periods: 1) Following the Dusky Sound earthquake; 2) Following the Dar eld earthquake and prior to the Christchurch earthquake; and 3) Following the Christchurch earthquake until February 2015.  The ground displacement associated with postseismic motion following the Dusky Sound earthquake has been measured by continuous and campaign GPS data acquired in August 2009, in conjunction with Di erential Interferometric Synthetic Aperture Radar (DInSAR) observations. We use an afterslip model, estimated by temporal inversion of geodetic data, with combined viscoelastic rebound model to account for the observed spatio-temporal patterns of displacement. The two postseismic processes together induce a signi cant displacement corresponding to principal extensional and contractual strain rates of the order of 10⁻⁷ and 10⁻⁸ yr⁻¹ respectively, across most of the southern South Island.  We also analyse observed postseismic displacement following the Dusky Sound earthquake using a new inversion approach in order to describe afterslip in an elasticviscoelastic medium. We develop a mathematical framework, namely the "Iterative Decoupling of Afterslip and Viscoelastic rebound (IDAV)" method, with which to invert temporally dense and spatially sparse geodetic observations. We examine the IDAV method using both numerical and analytical simulations of Green's functions.  For the post-Dar eld time interval, postseismic signals are measured within approximately one month of the mainshock. The dataset used for the post-Dar eld displacement spans the region surrounding previously unrecognised faults that ruptured during the mainshock. Poroelastic rebound in a multi-layered half-space and dilatancy recovery at shallow depths provide a satisfactory t with the observations.  For the post-Christchurch interval, campaign GPS data acquired in February 2012 to February 2015 in four successive epochs and 66 TerraSAR-X (TSX) SAR acquisitions in descending orbits between March 2011 and May 2014 reveal approximately three years of postseismic displacement. We detect movement away from the satellite of ~ 3 mm/yr in Christchurch and a gradient of displacement of ~ 4 mm/yr across a lineament extending from the westernmost end of the Western Christchurch Fault towards the eastern end of the Greendale East Fault. The postseismic signals following the Christchurch earthquake are mainly accounted for by afterslip models on the subsurface lineament and nearby faults.