An image designed for use as a banner. The image reads, "Shaken, stirred and still standing strong! Kia ora Canterbury". The image is from All Right's 'Compliments' project. For more information, see 'All Right? Compliments': https://quakestudies.canterbury.ac.nz/store/collection/972
A PDF copy of pages 316-317 of the book Christchurch: The Transitional City Pt IV. The pages document the transitional project 'Art Beat'. Photos of stage and graffiti works fledge.co.nz. Photos of building and loss adjusters courtesy of the social.
Christchurch's old central city police station building will now be demolished on Sunday by implosion. Another one of Christchurch recognisable buildings to be given a death sentence following the earthquakes of 2010/2011. Photo by Geoff Trotter at www.dreamdreams.co.nz
One pair of size 3-8 women's red and black striped merino wool socks with a black seismograph marking above the ankle; now separated from their red, white and black branded card packaging. Produced following the 22 February 2011 earthquake. The Aftersocks fundraising campaign was an initiative to support the Canterbury region following the 22 F...
Two pairs of size 11-13 red and black striped merino wool socks with a black seismograph marking above the ankle; held together by black, red and white branded card packaging. Produced following the 22 February 2011 earthquake. The Aftersocks fundraising campaign was an initiative to support the Canterbury region following the 22 February 2011 ...
One pair of size 8-12 men's black merino wool Executive Aftersocks socks with a red seismograph marking above the ankle; now separated from their red, white and black branded card packaging. Produced following the 22 February 2011 earthquake. The Aftersocks fundraising campaign was an initiative to support the Canterbury region following the 22...
This paper examines the consistency of seismicity and ground motion models, used for seismic hazard analysis in New Zealand, with the observations in the Canterbury earthquakes. An overview is first given of seismicity and ground motion modelling as inputs of probabilistic seismic hazard analysis, whose results form the basis for elastic response spectra in NZS1170.5:2004. The magnitude of earthquakes in the Canterbury earthquake sequence are adequately allowed for in the current NZ seismicity model, however the consideration of ‘background’ earthquakes as point sources at a minimum depth of 10km results in up to a 60% underestimation of the ground motions that such events produce. The ground motion model used in conventional NZ seismic hazard analysis is shown to provide biased predictions of response spectra (over-prediction near T=0.2s , and under-predictions at moderate-to-large vibration periods). Improved ground motion prediction can be achieved using more recent NZ-specific models.
This presentation discusses recent empirical ground motion modelling efforts in New Zealand. Firstly, the active shallow crustal and subduction interface and slab ground motion prediction equations (GMPEs) which are employed in the 2010 update of the national seismic hazard model (NSHM) are discussed. Other NZ-specific GMPEs developed, but not incorporated in the 2010 update are then discussed, in particular, the active shallow crustal model of Bradley (2010). A brief comparison of the NZ-specific GMPEs with the near-source ground motions recorded in the Canterbury earthquakes is then presented, given that these recordings collectively provide a significant increase in observed strong motions in the NZ catalogue. The ground motion prediction expert elicitation process that was undertaken following the Canterbury earthquakes for active shallow crustal earthquakes is then discussed. Finally, ongoing GMPE-related activities are discussed including: ground motion and metadata database refinement, improved site characterization of strong motion station, and predictions for subduction zone earthquakes.
An image from a Army News March 2011 article titled, "Defence Medical Personnel Use Their Expertise". The image is captioned, "Warrant Officer Class One Tim Crowe with nursing officer Lieutenant Nicole Houlahan".
The cartoon depicts a little plant with two tiny leaves; text reads 'THE GARDEN CITY'. A second version includes the words 'Begins to grow again'. Context - The earliest stages of the rebuilding of Christchurch after the earthquakes of 4 September 2010 and 22 February 2011. Quantity: 2 digital cartoon(s).
The cartoon shows stenciled text in black and white that reads 'GRIEF THE PRICE WE PAY FOR LOVE'. Context - The earliest stages of the rebuilding of Christchurch after the earthquakes of 4 September 2010 and 22 February 2011. Quantity: 1 digital cartoon(s).
The ultimate goal of this study is to develop a model representing the in-plane behaviour of plasterboard ceiling diaphragms, as part of the efforts towards performance-based seismic engineering of low-rise light timber-framed (LTF) residential buildings in New Zealand (NZ). LTF residential buildings in NZ are constructed according to a prescriptive standard – NZS 3604 Timberframed buildings [1]. With regards to seismic resisting systems, LTF buildings constructed to NZS3604 often have irregular bracing arrangements within a floor plane. A damage survey of LTF buildings after the Canterbury earthquake revealed that structural irregularity (irregular bracing arrangement within a plane) significantly exacerbated the earthquake damage to LTF buildings. When a building has irregular bracing arrangements, the building will have not only translational deflections but also a torsional response in earthquakes. How effectively the induced torsion can be resolved depends on the stiffness of the floors/roof diaphragms. Ceiling and floor diaphragms in LTF buildings in NZ have different construction details from the rest of the world and there appears to be no information available on timber diaphragms typical of NZ practice. This paper presents experimental studies undertaken on plasterboard ceiling diaphragms as typical of NZ residential practice. Based on the test results, a mathematical model simulating the in-plane stiffness of plasterboard ceiling diaphragms was developed, and the developed model has a similar format to that of plasterboard bracing wall elements presented in an accompany paper by Liu [2]. With these two models, three-dimensional non-linear push-over studies of LTF buildings can be undertaken to calculate seismic performance of irregular LTF buildings.
A member of the New Zealand Army chatting to a woman with her dog at a cordon checkpoint on Armagh Street.
Photograph captioned by BeckerFraserPhotos, "Radio New Zealand House at 51 Chester Street West".
A video about the Reserve Force personnel assisting in Christchurch after the 22 February 2011. The Reserve Force helped Fulton Hogan clean up sections and streets in Avonside, as well as manning the cordons.
Photograph captioned by BeckerFraserPhotos, "Radio New Zealand House at 51 Chester Street West".
A photograph of a line of army trucks parked on the side of a road in the Christchurch central city. A member of the New Zealand Army is tying a bundle of wood onto the roof of one of the trucks.
A photograph of members of the New Zealand Army demolishing a concrete block fence on a property in Christchurch.
A photograph of two members of the New Zealand Army securing a bundle of wood onto the roof of a truck.
An article from Army News, March 2011 titled, "Transport".
As a man and a woman walk along the man comments that 'for 2 minutes yesterday people were joined as one in a spirit of caring and thoughtful reflection...' The woman, speaking about their personal life, wonders why they only ever manage 2 minutes of that. Context - at 12.51 pm on Tuesday 1 March 2011 (exactly a week after the catastrophic Christchurch earthquake of 22 February) all of New Zealand stopped for two minutes of silent contemplation. Quantity: 1 digital cartoon(s).
The cartoon shows a family standing proudly in front of their tent which has 'No leaks!', is 'Earthquake-proof!', and 'Affordable!' An 'Optional extra' is an 'inflatable base for tsunami-prone areas'. Text below reads 'Not suitable for volcanic areas. Refers to the problems that have been experienced in the last couple of decades with leaky homes because of slack building codes (which have now been tightened), refers also to the Canterbury earthquake of 4th September with its aftermath of rebuilding for greater earthquake proofing and lastly refers to the problem of people being unable to afford houses. Quantity: 1 digital cartoon(s).
The arms of a woman who represents New Zealand reach out to a baby to whom she has just given birth. The baby represents '2011' and is a particularly hideous specimen. The doctor who holds the baby says 'He's cute now but wait 'til he gets older!' Outside the window is seen a cracked and damaged landscape and a storm rages; the headstone of a grave reads 'RIP 2010'. Context - Christchurch or maybe the South Island have had a bad year because of the Pike River Mine disaster and the earthquake of 4 September 2010. There is perhaps prescience in this cartoon because on 22 February 2011 a much worse earthquake hit Christchurch. Published in The Press Quantity: 1 digital cartoon(s).
The cartoon shows a tall candle representing 'rescuers' from which a flame of 'courage' burns. Below are broken stones creating the name 'Christchurch'. Context - The Christchurch earthquake 22 February 2011. Quantity: 1 digital cartoon(s).
A man has climbed an active volcano and pitched a tent in order to get away from the Canterbury earthquake and the flooding in the lower North Island. Refers to the Christchurch earthquake of 4th September 2010 as well as the heavy rain, slips, and flooding from Whanganui in the centre of the North Island down to the Rimutaka Hill Road, North of Wellington. Quantity: 1 digital cartoon(s).
Santa Claus climbs out of a toilet saying 'cross this one off the list!' Text above reads 'With all the broken chimneys, Santa must be practising new access points for the big night' Context; the damage to many houses as a result of the Christchurch earthquake of 4th October 2010. Quantity: 1 digital cartoon(s).
An arm representing the 'Citizens & Volunteers of Christchurch' offers an Oscar Award for 'True Grit'. Context - Admiration at the way the people and the volunteers have managed after the Christchurch earthquake of 22 February 2011. True Grit is a 2010 American Western film written and directed by the Coen brothers. It is the second adaptation of Charles Portis' 1968 novel of the same name, which was previously adapted for film in 1969 starring John Wayne. Colour and black and white versions of this cartoon are available Quantity: 2 digital cartoon(s).
Text at top left reads 'Daft things our forefathers did The cartoon shows several nineteenth century gentlemen observing 'volcanic cones', a 'swamp' and 'faultlines underneath' and deciding to build a city. Context - Specifically the Christchurch earthquakes of 4 September 2010 and 22 February 2011 but generally the way many New Zealand cities are built on or near volcanoes, faultlines and swamps. Quantity: 1 digital cartoon(s).
A graph shows an earthquake registering 7.1 on the Richter scale and $2 billion on the 'Wreckter' scale. An arrow shoots upwards from the $2 billion anticipating that the cost will rise higher. Text above reads 'SIZE-mic does matter'. Refers to the Christchurch earthquake of Saturday 4th September 2010 and the cost of the damage. No-one was killed. Quantity: 1 digital cartoon(s).
Debbie says brightly that Christchurch has 'demonstrated the classic Kiwi quality of stoicism and behaving decently towards each other!' Jaimee replies that it's the same stoicism that means we complain a lot about our problems but never really do anything and Debbie tells her that applies just to her. Refers to the Christchurch earthquake of 4th September. Quantity: 1 digital cartoon(s).