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Images for CHRISTCHURCH; more images...

Images, eqnz.chch.2010

Awaiting restoration, the Cathedral was damaged in a series of major earthquakes. 52 in 2018: 30. Ruin or Archaelogical site

Images, Alexander Turnbull Library

Text reads 'Bad news for Christchurch playing fields'. On the left is a man wearing the Canterbury colours and carrying a flag; he looks most upset about the 'AMI Stadium' being red stickered. On the right is a woman of the night in fishnet stockings and a very short skirt who looks very upset as she hears that 'Manchester Street' has been red stickered. The little Evans man in the corner says 'Red light, red carded, from the red zone'. Context - The AMI Stadium was supposed to be the venue for the Rugby World Cup in Christchurch - a decision made on 16 March was made that Christchurch was not in a position to host the RWC. With Manchester St on the city side of Bealey Ave cordoned off, street workers have been working from the residential area between Bealey and Purchas St. and residents are furious. Colour and black and white versions of this cartoon are available Quantity: 2 digital cartoon(s).

Research papers, University of Canterbury Library

The September 2010 Canterbury and February 2011 Christchurch earthquakes and associated aftershocks have shown that the isolator displacement in Christchurch Women's Hospital (Christchurch City's only base-isolated structure) was significantly less than expected. Occupant accounts of the events have also indicated that the accelerations within the hospital superstructure were larger than would usually be expected within a base-isolated structure and that residual low-level shaking lasts for a longer period of time following the strong-motion of an event than for non-isolated structures.

Research papers, University of Canterbury Library

On February 22, 2011, a magnitude Mw 6.2 earthquake affected the Canterbury region, New Zealand, resulting in many fatalities. Liquefaction occurred across many areas, visible on the surface as ‘‘sand volcanoes’’, blisters and subsidence, causing significant damage to buildings, land and infrastructure. Liquefaction occurred at a number of sites across the Christchurch Boys High School sports grounds; one area in particular contained a piston ground failure and an adjacent silt volcano. Here, as part of a class project, we apply near-surface geophysics to image these two liquefaction features and determine whether they share a subsurface connection. Hand auger results enable correlation of the geophysical responses with the subsurface stratigraphy. The survey results suggest that there is a subsurface link, likely via a paleo-stream channel. The anomalous responses of the horizontal loop electromagnetic survey and electrical resistivity imaging highlight the disruption of the subsurface electrical properties beneath and between the two liquefaction features. The vertical magnetic gradient may also show a subtle anomalous response in this area, however the results are inconclusive. The ground penetrating radar survey shows disruption of the subsurface stratigraphy beneath the liquefaction features, in particular sediment mounding beneath the silt ejection (‘‘silt volcano’’) and stratigraphic disruption beneath the piston failure. The results indicate how near-surface geophysics allow the characteristics of liquefaction in the subsurface to be better understood, which could aid remediation work following liquefaction-induced land damage and guide interpretation of geophysical surveys of paleoliquefaction features.