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Hypocentre relocations using data from temporary seismograph stations at Burakin and Wyalkatchem, Western Australia

Created 17/10/2025

Updated 17/10/2025

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Temporary seismograph stations were operated near Cadoux W.A. after a large (ML 6.2) earthquake on 2 June 1979 near Wyalkatchem WA, after an ML 4.3 event near there 6 January 1988. The earthquake near Wyalkatchem was the largest of a series of events at this locality which continued over a period of 15 months. Arrival times recorded by these stations are tabulated in this paper. They have been used to relocate some of the 1979 Cadoux aftershocks using the Phillip Institute of Technology EQLOCL earthquake location program. The effect of the relocations has been to move the epicentres from east of the fault complex, to west of it. This result is similar to the distribution of some accurately located 1983 earthquakes, and is consistant with the mapped fault dip. Relocations using data from the Wyalkatchem station have not resulted in a significant change in hypocentral parameters. Consistent large residuals for NWAO S phases from Cadoux events indicate the first S arrival is not SN, and is more likely to be SG.

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Field Value
Title Hypocentre relocations using data from temporary seismograph stations at Burakin and Wyalkatchem, Western Australia
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/b6079af0-6794-4173-b469-96e492d2eff5
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        117.0,
        -31.0
      ],
      [
        118.5,
        -31.0
      ],
      [
        118.5,
        -30.0
      ],
      [
        117.0,
        -30.0
      ],
      [
        117.0,
        -31.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Hypocentre relocations using data from temporary seismograph stations at Burakin and Wyalkatchem, Western Australia". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/hypocentre-relocations-using-data-from-temporary-seismograph-stations-at-burakin-and-wyalkatche