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Articles, Christchurch uncovered

He is bed maker to the dead. The pillows which he lays never rumple. The day of interment is the theatre in which he displays the mysteries of this art. Thomas Lamb 1811.   Nothing in this would can be … Continue reading →

Images, UC QuakeStudies

A photograph of earthquake damage to Croydon House Bed and Breakfast Hotel on Armagh Street. The front windows have been boarded up and a fence has been erected around the front of the building.

Research papers, University of Canterbury Library

Deep shear wave velocity (Vs) profiles (>400 m) were developed at 14 sites throughout Christchurch, New Zealand using surface wave methods. This paper focuses on the inversion of surface wave data collected at one of these sites, Hagley Park. This site is located on the deep soils of the Canterbury Plains, which consist of alluvial gravels inter-bedded with estuarine and marine sands, silts, clays and peats. Consequently, significant velocity contrasts exist at the interface between geologic formations. In order to develop realistic velocity models in this complex geologic environment, a-priori geotechnical and geologic data were used to identify the boundaries between geologic formations. This information aided in developing the layering for the inversion parameters. Moreover, empirical reference Vs profiles based on material type and confining pressure were used to develop realistic Vs ranges for each layer. Both the a-priori layering information and the reference Vs curves proved to be instrumental in generating realistic velocity models that account for the complex inter-bedded geology in the Canterbury Plains.

Images, UC QuakeStudies

A photograph of a bed inside a campervan parked in Hagley Park. The campervan served as temporary accommodation for emergency management personnel who travelled to Christchurch after the 22 February 2011 earthquake.