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Images for 2011 Christchurch earthquake; more images...

Images, eqnz.chch.2010

Photos taken in Lyttelton on April 19 showing the demolition of buildings on London Street, Lyttelton, following the February 22 earthquake. File reference: CCL-2011-04-19-London-Street-Demolition-IMG_0178 From the collection of Christchurch City Libraries.

Images, eqnz.chch.2010

Photos taken in Lyttelton on April 19 showing the demolition of buildings on London Street, Lyttelton, following the February 22 earthquake. File reference: CCL-2011-04-19-London-Street-Demolition-IMG_0181 From the collection of Christchurch City Libraries.

Images, eqnz.chch.2010

Photos taken in Lyttelton on April 19 showing the demolition of buildings on London Street, Lyttelton, following the February 22 earthquake. File reference: CCL-2011-04-19-London-Street-Demolition-IMG_0203 From the collection of Christchurch City Libraries.

Images, eqnz.chch.2010

Photos taken in Lyttelton on April 19 showing the demolition of buildings on London Street, Lyttelton, following the February 22 earthquake. File reference: CCL-2011-04-19-London-Street-Demolition-IMG_0165 From the collection of Christchurch City Libraries.

Images, eqnz.chch.2010

Photos taken in Lyttelton on April 19 showing the demolition of buildings on London Street, Lyttelton, following the February 22 earthquake. File reference: CCL-2011-04-19-London-Street-Demolition-IMG_0208 From the collection of Christchurch City Libraries.

Images, eqnz.chch.2010

Photos taken in Lyttelton on April 19 showing the demolition of buildings on London Street, Lyttelton, following the February 22 earthquake. File reference: CCL-2011-04-19-London-Street-Demolition-IMG_0202 From the collection of Christchurch City Libraries.

Images, Alexander Turnbull Library

Text reads 'Parking wardens resume work in Christchurch'. A parking warden peers anxiously at a huge tanker named 'Bill's Septic Tank Services' which is apparently parked illegally. The driver of the tanker, who holds the nozzle of a pump attached to the tank, says 'Your move!' suggesting the threat of a sewage spill if the warden insists on compliance. Context - 'After a lengthy grace period following the devastating February 22 quake, Parking wardens were yesterday on the hunt for parking infringers in the city's non-metered time-restricted zones, loading zones, bus/tour coach stops and taxi stands, and on the likes of broken yellow lines.' The resumption of work by the parking wardens does suggest a return to normal in Christchurch. (NZHerald 30 May 2011) Colour and black and white versions available Quantity: 2 digital cartoon(s).

Images, UC QuakeStudies

Dried liquefaction in North New Brighton. The photographer comments, "This shape formed as the liquefaction after the 23 December earthquake in Christchurch started to dry out".

Audio, Radio New Zealand

Radio New Zealand archivist reports on the earthquake recovery operation taking place in Christchurch to preserve this country's broadcasting history.

Audio, Radio New Zealand

Head of Music at Linwood College in Christchurch on status of school orchestra's European trip that was planned before earthquake.

Audio, Radio New Zealand

Christchurch-based 11 year-old piano player talks about the compostition he wrote in response to the Sepetmber 4 earthquake.

Videos, UC QuakeStudies

A video about field trials conducted by the Department of Building and Housing at Queen Elizabeth II Park in Christchurch. Fifty kilograms of explosives are being used to simulate a magnitude-4 earthquake at a distance of 10 kilometres. The aim of the trials is to test soil-strengthening techniques that could be used to repair damaged land in Christchurch.

Research papers, University of Canterbury Library

Six months after the 4 September 2010 Mw 7.1 Darfield (Canterbury) earthquake, a Mw 6.2 Christchurch (Lyttelton) aftershock struck Christchurch on the 22 February 2011. This earthquake was centred approximately 10km south-east of the Christchurch CBD at a shallow depth of 5km, resulting in intense seismic shaking within the Christchurch central business district (CBD). Unlike the 4 Sept earthquake when limited-to-moderate damage was observed in engineered reinforced concrete (RC) buildings [35], in the 22 February event a high number of RC Buildings in the Christchurch CBD (16.2 % out of 833) were severely damaged. There were 182 fatalities, 135 of which were the unfortunate consequences of the complete collapse of two mid-rise RC buildings. This paper describes immediate observations of damage to RC buildings in the 22 February 2011 Christchurch earthquake. Some preliminary lessons are highlighted and discussed in light of the observed performance of the RC building stock. Damage statistics and typical damage patterns are presented for various configurations and lateral resisting systems. Data was collated predominantly from first-hand post-earthquake reconnaissance observations by the authors, complemented with detailed assessment of the structural drawings of critical buildings and the observed behaviour. Overall, the 22 February 2011 Mw 6.2 Christchurch earthquake was a particularly severe test for both modern seismically-designed and existing non-ductile RC buildings. The sequence of earthquakes since the 4 Sept 2010, particularly the 22 Feb event has confirmed old lessons and brought to life new critical ones, highlighting some urgent action required to remedy structural deficiencies in both existing and “modern” buildings. Given the major social and economic impact of the earthquakes to a country with strong seismic engineering tradition, no doubt some aspects of the seismic design will be improved based on the lessons from Christchurch. The bar needs to and can be raised, starting with a strong endorsement of new damage-resisting, whilst cost-efficient, technologies as well as the strict enforcement, including financial incentives, of active policies for the seismic retrofit of existing buildings at a national scale.