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Seismic survey of the Mossy Marsh Tunnel area, Tasmania

Created 16/10/2025

Updated 16/10/2025

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Details and results are given of a seismic refraction survey made at the request of the Hydro-Electric Commission of Tasmania, to investigate the site of the western portal of the proposed Mossy Marsh Tunnel. The tunnel is part of the No. 2 Tarraleah Canal project to transport water from Lake King William to Tarraleah Power Station. The primary object of the survey was to determine the thickness of till overlying the dolerite bedrock, and hence contours of the bedrock surface.

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Additional Info

Field Value
Title Seismic survey of the Mossy Marsh Tunnel area, Tasmania
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/ac344baf-54d9-4fb0-9efa-25f0f3abd664
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        146.0,
        -42.5
      ],
      [
        146.5,
        -42.5
      ],
      [
        146.5,
        -42.0
      ],
      [
        146.0,
        -42.0
      ],
      [
        146.0,
        -42.5
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Seismic survey of the Mossy Marsh Tunnel area, Tasmania". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/seismic-survey-of-the-mossy-marsh-tunnel-area-tasmania