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Research papers, The University of Auckland Library

In the early morning of 4th September 2010 the region of Canterbury, New Zealand, was subjected to a magnitude 7.1 earthquake. The epicentre was located near the town of Darfield, 40 km west of the city of Christchurch. This was the country’s most damaging earthquake since the 1931 Hawke’s Bay earthquake (GeoNet, 2010). Since 4th September 2010 the region has been subjected to thousands of aftershocks, including several more damaging events such as a magnitude 6.3 aftershock on 22nd February 2011. Although of a smaller magnitude, the earthquake on 22nd February produced peak ground accelerations in the Christchurch region three times greater than the 4th September earthquake and in some cases shaking intensities greater than twice the design level (GeoNet, 2011; IPENZ, 2011). While in September 2010 most earthquake shaking damage was limited to unreinforced masonry (URM) buildings, in February all types of buildings sustained damage. Temporary shoring and strengthening techniques applied to buildings following the Darfield earthquake were tested in February 2011. In addition, two large aftershocks occurred on 13th June 2011 (magnitudes 5.7 and 6.2), further damaging many already weakened structures. The damage to unreinforced and retrofitted clay brick masonry buildings in the 4th September 2010 Darfield earthquake has already been reported by Ingham and Griffith (2011) and Dizhur et al. (2010b). A brief review of damage from the 22nd February 2011 earthquake is presented here

Images, UC QuakeStudies

An abandoned residential property at 4 Waireka Lane in Bexley. The driveway is covered with weeds and silt from liquefaction. One of the garage doors is twisted and the other has 'HM' spray-painted on it. The number four has been spray-painted on the brick wall under the window.

Images, UC QuakeStudies

Damage to the church hall of St John the Baptist Church in Latimer Square. The roof has been weather proofed with plywood and there are cracks in the buildings masonry. The remains of fallen bricks can be seen on the footpath. A safety fence has been erected around the building.

Images, UC QuakeStudies

Damage to the church hall of St John the Baptist Church in Latimer Square. The roof has been weather proofed with plywood and there are cracks in the buildings masonry. The remains of fallen bricks can be seen on the footpath. A safety fence has been erected around the building.

Images, UC QuakeStudies

A house in Christchurch with a red sticker on the window indicating that it is unsafe to enter. "No entry" and a large cross have also been spray painted on the front fence to warn people off. On the right side of the house, a tarpaulin can be seen covering a collapsed brick wall.

Images, UC QuakeStudies

Damage to a house in Richmond. Bricks have fallen from a wall, and there is a visible gap between the foundation and the surrounding ground. The photographer comments, "The foundation and a section of the wall of the dining room have shifted and cracked. The dining room floor is very springy".

Images, UC QuakeStudies

Internal damage to a house in Richmond. A large crack in the wallboard below a window has exposed the bricks, and the skirting board has moved away from the floor. The photographer comments, "Cracks in the wall of the sunroom. This is the interior view of the crack in the previous shot".

Images, UC QuakeStudies

A photograph captioned by BeckerFraserPhotos, "An old advertisments which was revealed on a building on Lichfield Street when its neighbour was demolished. The advertisement reads 'New Zealand Candle Co Ltd.' and then adds 'Five Medal, British Sperm', which are brands of candle".

Images, UC QuakeStudies

A photograph of the earthquake damage to the Knox Church on the corner of Bealey Avenue and Victoria Street. The gable walls have crumbled, exposing the wooden structure inside. Wire fencing, road cones and cordon tape have been placed around the building as a cordon.

Images, UC QuakeStudies

Damage to Lyttelton following the 22 February 2011 earthquake. Forbes' Store on Norwich Quay with a broken awning and damage visible on the brick walls. Scaffolding placed around the building since the 4 September 2010 earthquake has tumbled during the 22 February 2011 earthquake.

Images, UC QuakeStudies

Damage to Lyttelton following the 22 February 2011 earthquake. Forbes' Store on Norwich Quay with a broken awning and damage visible on the brick walls. Scaffolding placed around the building since the 4 September 2010 earthquake has tumbled during the 22 February 2011 earthquake.

Images, UC QuakeStudies

The corner of Colombo Street and Kilmore Street in the aftermath of the 22 February 2011 earthquake. The walls of several buildings along Colombo Street have collapsed, including Sala Thai Restaurant, which has spilled bricks onto the road. A bus has stopped alongside the building and police officers can be seen walking along the road.

Images, UC QuakeStudies

A house on Avonside Drive showing damage from the 4 September 2010 earthquake. Numerous cracks in the masonry can be seen, and several sections of brick have fallen off the walls. The building's porch has also collapsed. A pile of dried liquefaction is visible in the driveway.

Images, UC QuakeStudies

A heart shape made from takeaway cups and a heart-shape felt piece, stitched to the wire fence in front of the Volcano Cafe and Lava Bar. On it are the words "Live. Love. Life". Behind is a pile of bricks, a broken fence and a digger can be partially seen.

Images, UC QuakeStudies

Defence Force personnel walking down Norwich Quay during an operational tour of Lyttelton taken by Commander Joint Forces New Zealand, Air Vice Marshal Peter Stockwell and Chief of Army Tim Keating to view the aftermath of the Christchurch Earthquake.

Images, UC QuakeStudies

A cordoned off area in Christ's College where bricks from the heritage buildings have been removed and stacked. Scaffolding can be seen on the building in the distance and a prefab building to the right which was being used as classrooms while the buildings are still unsafe to enter.

Images, UC QuakeStudies

A photograph of the earthquake damage to a group of shops on Westminster Street in St Albans. Bricks and other rubble from the buildings have been piled on the footpath. Wire fencing, road cones and police tape have been placed around the buildings as a cordon.

Images, UC QuakeStudies

A photograph taken near the intersection of Manchester Street, Lichfield Street and High Street. A mural has been painted on a brick wall. Behind this is the old Post Office building (now C1 Espresso). There is a sculpture by Ronnie Van Hout on the roof.

Images, UC QuakeStudies

A photograph of the Wellington Emergency Management Office Emergency Response Team posing for a photograph on Lichfield Street. In the background is the earthquake-damaged John Burns & Co. Ltd Building. The top storey of the side wall of the building has collapsed and the rubble has spilled into the car park below. Several cars which were crushed by the falling rubble have been stacked next to the building.