A story submitted by Holly to the QuakeStories website.
A story submitted by Hamish to the QuakeStories website.
A story submitted by Russell to the QuakeStories website.
A story submitted by Sophie to the QuakeStories website.
A story submitted by Eliza Matthews to the QuakeStories website.
A story submitted by Steve Taylor to the QuakeStories website.
A story submitted by Adele Geradts to the QuakeStories website.
A story submitted by Yvonne to the QuakeStories website.
A story submitted by Allie to the QuakeStories website.
A story submitted by Rene to the QuakeStories website.
A story submitted by Leonie to the QuakeStories website.
A story submitted by Mrs B. to the QuakeStories website.
A story submitted by Ashley Hitt-Schultz to the QuakeStories website.
A story submitted by Owen to the QuakeStories website.
A story submitted by Anonymous to the QuakeStories website.
A story submitted by Bernice to the QuakeStories website.
Wall art File Ref: CCL-2011-03-17-St Albans-IMG_0382 From the collection of Christchurch City Libraries.
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Canterbury Public Library viewed from near the Bridge of Rememberance,
Churches are an important part of New Zealand's historical and architectural heritage. Various earthquakes around the world have highlighted the significant seismic vulnerability of religious buildings, with the extensive damage that occurred to stone and clay-brick unreinforced masonry churches after the 2010-2011 Canterbury earthquakes emphasising the necessity to better understand this structural type. Consequently, a country-wide inventory of unreinforced masonry churches is here identified. After a bibliographic and archival investigation, and a 10 000 km field trip, it is estimated that currently 297 unreinforced masonry churches are present throughout New Zealand, excluding 12 churches demolished in Christchurch because of heavy damage sustained during the Canterbury earthquake sequence. The compiled database includes general information about the buildings, their architectural features and structural characteristics, and any architectural and structural transformations that have occurred in the past. Statistics about the occurrence of each feature are provided and preliminary interpretations of their role on seismic vulnerability are discussed. The list of identified churches is reported in annexes, supporting their identification and providing their address.
The sequence of earthquakes that has greatly affected Christchurch and Canterbury since September 2010 has again demonstrated the need for seismic retrofit of heritage unreinforced masonry buildings. Commencing in April 2011, the damage to unreinforced stone masonry buildings in Christchurch was assessed and recorded with the primary objective being to document the seismic performance of these structures, recognising that they constitute an important component of New Zealand’s heritage architecture. A damage statistics database was compiled by combining the results of safety evaluation placarding and post-earthquake inspections, and it was determined that the damage observed was consistent with observations previously made on the seismic performance of stone masonry structures in large earthquakes. Details are also given on typical building characteristics and on failure modes observed. Suggestions on appropriate seismic retrofit and remediation techniques are presented, in relation also to strengthening interventions that are typical for similar unreinforced stone masonry structures in Europe.
Well-validated liquefaction constitutive models are increasingly important as non-linear time history analyses become relatively more common in industry for key projects. Previous validation efforts of PM4Sand, a plasticity model specifically for liquefaction, have generally focused on centrifuge tests; however, pore pressure transducers installed at several free-field sites during the Canterbury Earthquake Sequence (CES) in Christchurch, New Zealand provide a relatively unique dataset to validate against. This study presents effective stress site response analyses performed in the finite difference software FLAC to examine the capability of PM4Sand to capture the generation of excess pore pressures during earthquakes. The characterization of the subsurface is primarily based on extensive cone penetration tests (CPT) carried out in Christchurch. Correlations based on penetration resistances are used to estimate soil parameters, such as relative density and shear wave velocity, which affect liquefaction behaviour. The resulting free-field FLAC model is used to estimate time histories of excess pore pressure, which are compared with records during several earthquakes in the CES to assess the suitability of PM4Sand.
A satirical sign for Tui Beer on the side of a bar in Sydenham reading, "Earthquake? We closed for renovations. Yeah right. Tui".
Photograph captioned by BeckerFraserPhotos, "Earthquake resilience graffiti on the site of a demolished building in Sydenham. Wildflowers have grown out front".
Prime Minister John Key is interviewed at the memorial service held in Latimer Square on the anniversary of the 22 February 2011 earthquake.
A photograph of an earthquake-damaged car park under the Canterbury Trade Union Centre on the corner of Armagh Street and Madras Street.
The US Aid tent in Latimer Square. After the 22 February 2011 earthquake, emergency service agencies set up their headquarters in Latimer Square.
A photograph of liquefaction covering the footpath and road on Manchester Street. The photograph was taken shortly after the 22 February 2011 earthquake.
A photograph of a parked car surrounded by liquefaction on Manchester Street. The photograph was taken shortly after the 22 February 2011 earthquake.