The Kalgoorlie Earthquake of the 20th April 2010 : Preliminary Damage Survey Outcomes  


Authors / CoAuthors

Edwards, M. | Griffith, M. | Wehner, M. | Lam, N.T.K | Corby, N. | Jakab, M. | Habili, N.

Abstract

The seismicity of the Australian continent is low to moderate by world standards. However, the seismic risk is much higher for some types of Australian infrastructure. The legacy of older unreinforced masonry buildings, in particular, may contribute disproportionately to community risk. At 8:17am on the 20th April a Mw 5.0 earthquake shook Kalgoorlie. The resultant ground motion was found to vary markedly across the town with the older masonry building stock in the suburb of Boulder experiencing a greater shaking intensity than the corresponding vintage of buildings in the Kalgoorlie business district 4km away. The event has provided the best opportunity to examine the earthquake vulnerability of Australian buildings since the Newcastle Earthquake of 1989. This paper describes the event and the staged collaborative survey activity that followed. The initial reconnaissance team of two specialists captured street-view imagery of 12,000 buildings within Kalgoorlie using a vehicle mounted camera array developed by Geoscience Australia. This information subsequently informed a systematic population based building survey using PDA data collection units. The work was performed by a team of nine from the University of Adelaide, the University of Melbourne and Geoscience Australia. This paper describes the preliminary findings of the work and outlines proposed future research.

Product Type

document

eCat Id

70820

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Commonwealth of Australia (Geoscience Australia)  
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
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Keywords

  • External PublicationConference Paper
( Theme )
  • earthquakes
( Theme )
  • risk analysis
  • AU-WA
Australian and New Zealand Standard Research Classification (ANZSRC)
  • Earth Sciences
  • Published_Internal

Publication Date

2010-01-01T00:00:00

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Australian Government Security ClassificationSystem    

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Creative Commons Attribution 4.0 International Licence    

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geoscientificInformation

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Spatial Resolution

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Download the paper (pdf) [3.6 MB]  

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