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Images, UC QuakeStudies

Photograph captioned by Fairfax, "Invercargill Fire Station fire fighters who recently went to help in Christchurch for the Canterbury Earthquake cleanup. The National Boss presented the fire fighters with a Certificate of Commendation on Tuesday night. Invercargill firefighters Cameron McLachlan, Pete Scarlet, Dennis Hika, Chris Hamilton, Aaron Ramsay, National Commander Mike Hall, John Gilder, Ron Fetolofai (absent Murray Milne-Maresca) presented a certificate of commendation for their service during the Christchurch earthquake by national commander Mike Hall yesterday".

Research papers, University of Canterbury Library

This paper presents site-specific and spatially-distributed ground-motion intensity estimates which have been utilized in the aftermath of the 2010-2011 Canterbury, New Zealand earthquakes. The methodology underpinning the ground motion intensity estimation makes use of both prediction models for ground motion intensity and its within-event spatial correlation. A key benefit of the methodology is that the estimated ground motion intensity at a given location is not a single value but a distribution of values. The distribution is comprised of both a mean and standard deviation, with the standard deviation being a function of the distance to nearby observations at strong motion stations. The methodology is illustrated for two applications. Firstly, maps of conditional peak ground acceleration (PGA) have been developed for the major events in the Canterbury earthquake sequence, which among other things, have been utilized for assessing liquefaction triggering susceptibility of land in residential areas. Secondly, the conditional distribution of response spectral ordinates is obtained at the location of the Canterbury Television building (CTV), which catastrophically collapsed in the 22 February 2011 earthquake. The conditional response spectra provide insight for the selection of ground motion records for use in forensic seismic response analyses of important structures at locations where direct recordings are absent.