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Research papers, The University of Auckland Library

The M7.1 Darfield earthquake shook the town of Christchurch (New Zealand) in the early morning on Saturday 4th September 2010 and caused damage to a number of heritage unreinforced masonry buildings. No fatalities were reported directly linked to the earthquake, but the damage to important heritage buildings was the most extensive to have occurred since the 1931 Hawke‟s Bay earthquake. In general, the nature of damage was consistent with observations previously made on the seismic performance of unreinforced masonry buildings in large earthquakes, with aspects such as toppled chimneys and parapets, failure of gables and poorly secured face-loaded walls, and in-plane damage to masonry frames all being extensively documented. This report on the performance of the unreinforced masonry buildings in the 2010 Darfield earthquake provides details on typical building characteristics, a review of damage statistics obtained by interrogating the building assessment database that was compiled in association with post-earthquake building inspections, and a review of the characteristic failure modes that were observed.

Images, UC QuakeStudies

A damaged building on the corner of Montreal and Armagh Streets, near Cranmer Square. To the right, a new tilt-slab building is being constructed on the site of a demolished building and the damaged Cranmer Centre can be seen.

Images, UC QuakeStudies

A damaged building on Durham Street. Cracks can be been in the brickwork, as well as a pile of bricks from a damaged wall to the left. Wire fencing has been placed around the building as a cordon. USAR codes have been spray-painted on the front window.