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The 2018 National Seismic Hazard Assessment (NSHA) - Derived Geo-spatial Product

Created 17/10/2025

Updated 17/10/2025

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As part of the 2018 National Seismic Hazard Assessment (NSHA), we compiled the geographic information system (GIS) dataset to enable end-users to view and interrogate the NSHA18 outputs on a spatially enabled platform. It is intended to ensure the NSHA18 outputs are openly available, discoverable and accessible to both internal and external users.

This geospatial product is derived from the dataset generated through the development of the NSHA18 and contains uniform probability hazard maps for a 10% and 2% chance of exceedance in 50 years. These maps are calculated for peak ground acceleration (PGA) and a range of response spectral periods, Sa(T), for T = 0.1, 0.2, 0.3, 0.5, 1.0, 2.0 and 4.0 s. Additionally, hazard curves for each ground-motion intensity measure as well as uniform hazard spectra at the nominated exceedance probabilities are calculated for key localities.

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Additional Info

Field Value
Title The 2018 National Seismic Hazard Assessment (NSHA) - Derived Geo-spatial Product
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/14c39f02-cc81-4ddd-847c-9c546c9686e5
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 29/08/2019
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        109.1357,
        -48.6349
      ],
      [
        157.9857,
        -48.6349
      ],
      [
        157.9857,
        -6.1349
      ],
      [
        109.1357,
        -6.1349
      ],
      [
        109.1357,
        -48.6349
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "The 2018 National Seismic Hazard Assessment (NSHA) - Derived Geo-spatial Product". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/the-2018-national-seismic-hazard-assessment-nsha-derived-geo-spatial-product