Journal article
Strike-slip ground-surface rupture (Greendale Fault) associated with the 4 September 2010 Darfield earthquake, Canterbury, New Zealand
DJA Barrell, NJ Litchfield, DB Townsend, M Quigley, RJ Van Dissen, R Cosgrove, SC Cox, K Furlong, P Villamor, JG Begg, S Hemmings-Sykes, R Jongens, H Mackenzie, D Noble, T Stahl, E Bilderback, B Duffy, H Henham, A Klahn, EMW Lang Show all
Quarterly Journal of Engineering Geology and Hydrogeology | Published : 2011
Abstract
This paper provides a photographic tour of the ground-surface rupture features of the Greendale Fault, formed during the 4 September 2010 Darfield earthquake. The fault, previously unknown, produced at least 29.5 km of strike-slip surface deformation of right-lateral (dextral) sense. Deformation, spread over a zone between 30 and 300 m wide, consisted mostly of horizontal flexure with subsidiary discrete shears, the latter only prominent where overall displacement across the zone exceeded about 1.5 m. A remarkable feature of this event was its location in an intensively farmed landscape, where a multitude of straight markers, such as fences, roads and ditches, allowed precise measurements of..
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Funding Acknowledgements
We express our gratitude to landowners in the area of the fault rupture for kindly allowing access to their properties during the stressful period following the earthquake, and its numerous aftershocks. This work was carried out with funding assistance from a variety of sources, including the Earthquake Commission via the Geonet Project, and the Foundation for Research, Science and Technology (now Ministry of Science and Innovation) through the New Zealand Natural Hazards Research Platform and the Geological Map of New Zealand programme. We thank G. Dellow and B. Rosser (both GNS Science), and an anonymous journal reviewer, for their reviews of the paper. Photo credits: D. B., Figures 2a, 2b, 11, 14, 19 and 21; N. L., Figures 4b, 6 and 7; D. T., Figures 10a, 16, 17 and 20; M. Q., Figure 15; R. V. D., Figure 3; R. C., Figures 5 and 18a; S. C., Figures 4a and 8; K. F., Figure 13; P. V., Figure 18b; J. B., Figure 9; S. H. S. and H. M., Figure 10b; T. S., Figure 12.