This paper provides a comparison between the strong ground motions observed in the Christchurch central business district in the 4 September 2010 Mw7.1 Darfield, and 22 February 2011 Mw6.3 Christchurch earthquakes with those observed in Tokyo during the 11 March 2011 Mw9.0 Tohoku earthquake. Despite Tokyo being located approximately 110km from the nearest part of the causative rupture, the ground motions observed from the Tohoku earthquake were strong enough to cause structural damage in Tokyo and also significant liquefaction to loose reclaimed soils in Tokyo bay. Comparisons include the strong motion time histories, response spectra, significant durations and arias intensity. The implications for large earthquakes in New Zealand are also briefly discussed.
A photograph captioned by BeckerFraserPhotos, "A group of people arriving for the first anniversary Memorial Service for 22 February 2011".
Photo silt of a heart shape at a property in Burwood, Christchurch taken by Paul Gofton, 28 February 2011.
A digitally manipulated image of the sun shining through a stand of pine trees in New Brighton. Some of the trees are on a lean. The photographer comments, "Due to the Christchurch earthquakes and the land subsiding in this area the trees in this area will nearly all be cut down. So these may be the last tall trees to bathe in the sunshine for decades to come".
A hardcover book that details in words and photographs the response of the New Zealand Army, Air Force and Navy to the 22 February 2011 earthquake.
Colour photograph of the ChristChurch Cathedral bells at Taylor's Bell Foundry, Loughborough, United Kingdom, during an open afternoon on Sunday 30 September 2012.
Laminated photographic tribute to an unknown man in a head and shoulders shot with a second image below of a woman with four children.
A laminated photograph with text at the bottom left in memorial to Andrew Christian Ross Craig. In the upper left corner a circular hole has been punched to allow hanging of the item.
Wooden block artwork with the word hope and a heart on one side and, on the reverse, a handwritten message from Lausinda Grady.
Colour photograph of the ChristChurch Cathedral bells at Taylor's Bell Foundry, Loughborough, United Kingdom, during an open afternoon on Sunday 30 September 2012.
Colour photograph of the ChristChurch Cathedral bells in the Tuning Shop at Taylor's Bell Foundry, Loughborough, United Kingdom, during an open afternoon on Sunday 30 September 2012.
Page 6 of Section A of the Christchurch Press, published on Wednesday 22 February 2012.
A video of an interview with Dave Jessep, Director of DJCA, about the company's experiences after the 2010 and 2011 Canterbury earthquakes. This video is part of The Press's 'Up and Running' series which showcases businesses which stayed up and running despite the challenges posed by the 2010 and 2011 Canterbury earthquakes.
A video of an interview with David Stanley, Director of Canterbury Biltong, about the company's experiences after the 2010 and 2011 earthquakes. This video is part of The Press's 'Up and Running' series, showcasing businesses which have stayed up and running despite the challenges posed by the 2010 and 2011 Canterbury earthquakes.
A video of an interview with Deb Riach, co-owner of Coffee Worx, about the company's experiences after the 2010 and 2011 earthquakes. This video is part of The Press's 'Up and Running' series, which showcases businesses which stayed up and running despite the challenges posed by the 2010 and 2011 Canterbury earthquakes.
A presentation by Dr Charlotte Brown (Department of Civil and Natural Resource Engineering) on "A Waste-Full Recovery: Managing waste after the 2010/2011 Christchurch earthquakes".
A photograph of crowds sitting in Hagley Park. The photograph is captioned by BeckerFraserPhotos, "First anniversary Memorial Service for 22 February 2011".
A photograph of armed services personnel in Hagley Park. The photograph is captioned by BeckerFraserPhotos, "First anniversary Memorial Service for 22 February 2011".
A photograph of crowds sitting in Hagley Park. The photograph is captioned by BeckerFraserPhotos, "First anniversary Memorial Service for 22 February 2011".
A photograph of crowds sitting in Hagley Park. The photograph is captioned by BeckerFraserPhotos, "First anniversary Memorial Service for 22 February 2011".
A photograph of crowds sitting in Hagley Park. The photograph is captioned by BeckerFraserPhotos, "First anniversary Memorial Service for 22 February 2011".
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.
This paper describes the pounding damage sustained by buildings in the February 2011 Christchurch earthquake. Approximately 6% of buildings in Christchurch CBD were observed to have suffered some form of serious pounding damage. Typical and exceptional examples of building pounding damage are presented and discussed. Almost all building pounding damage occurred in unreinforced masonry buildings, highlighting their vulnerability to this phenomenon. Modern buildings were found to be vulnerable to pounding damage where overly stiff and strong ‘flashing’ components were installed in existing building separations. Soil variability is identified as a key aspect that amplifies the relative movement of buildings, and hence increases the likelihood of pounding damage. Building pounding damage is compared to the predicted critical pounding weaknesses that have been identified in previous analytical research.
This paper describes the pounding damage sustained by buildings in the February 2011 Christchurch earthquake. Approximately 6% of buildings in Christchurch CBD were observed to have suffered some form of serious pounding damage. Typical and exceptional examples of building pounding damage are presented and discussed. Almost all building pounding damage occurred in unreinforced masonry buildings, highlighting their vulnerability to this phenomenon. Modern buildings were found to be vulnerable to pounding damage where overly stiff and strong ‘flashing’ components were installed in existing building separations. Soil variability is identified as a key aspect that amplifies the relative movement of buildings, and hence increases the likelihood of pounding damage. Building pounding damage is compared to the predicted critical pounding weaknesses that have been identified in previous analytical research.
Poet/Journalist Richard Langston's fifth collection 'Things Lay in Pieces' starts with a sequence about the February 2011 Christchurch earthquake.
A photograph of the focus assembly from the Townsend Telescope. The assembly was damaged during the 22 February 2011 earthquake.
A photograph captioned by BeckerFraserPhotos, "5 Poplar Street with damage from 23 December 2011 on the second floor".
A video of an interview with Martin Bell, Managing Partner at Corcoran French, about the company's experiences after the 2010 and 2011 Canterbury earthquakes. This video is part of The Press's 'Up and Running' series which showcases businesses which stayed up and running despite the challenges posed by the 2010 and 2011 Canterbury earthquakes.
A video of an interview with Bruce Greenhalgh about the experiences of Smiths Sports Shoes after the 2010 and 2011 earthquakes. The business had to move from Moorhouse Avenue after the 4 September 2010 earthquake to Montreal Street. The 22 February 2011 earthquake then damaged their building on Montreal Street, forcing them to move again.
A video of an interview with Murray Gorton, Group General Manager at Archibald Motors, about the company's experiences after the 2010 and 2011 Canterbury earthquakes. This video is part of The Press's 'Up and Running' series, showcasing businesses which have stayed up and running despite the challenges posed by the 2010 and 2011 Canterbury earthquakes.