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Dalton-Gunning area, New South Wales, earth tremors of March, 1949

Created 17/10/2025

Updated 17/10/2025

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On March 11th, 1949, severe earth tremors were felt in the Dalton area, and, less severely, over a considerable portion of New South Wales. These were succeeded in the epicentral area by numerous aftershocks during the following fortnight. G.M. Burton and the writer were detailed to investigate the tremors and left Canberra on the first day of their occurrence. The greater part of the week devoted to the investigation, was spent in the Dalton area. A reconnaissance embracing an area within a radius of some 40 miles of Dalton was also carried out with a view to determining the regional distribution of intensities, and the Chief Geologist circularised Post Masters and Police Officers stationed at fourteen N.S.W. towns from which some information about the tremors was to be expected. This report provides a general description of the earth tremors and their effects. Instrumental data readings are recorded. The geology and physiography of the area, and their relation to the position of the epicentral area, as well as the causes of the tremors, are discussed. Plans showing the distribution, on a modified Mercalli scale, of seismic intensities during the earth tremors are included.

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Field Value
Title Dalton-Gunning area, New South Wales, earth tremors of March, 1949
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/946f552c-5a17-4dba-9a75-251f52eac854
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        148.0,
        -35.5
      ],
      [
        150.0,
        -35.5
      ],
      [
        150.0,
        -34.0
      ],
      [
        148.0,
        -34.0
      ],
      [
        148.0,
        -35.5
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Dalton-Gunning area, New South Wales, earth tremors of March, 1949". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/dalton-gunning-area-new-south-wales-earth-tremors-of-march-1949