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Development of the Australian National Seismic Hazard Assessment (NSHA) 2018

Created 16/10/2025

Updated 16/10/2025

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The 2018 revision of Australia's National Seismic Hazard Assessment (NSHA) represents a substantial improvement from the 2013 NSHA. In particular, this revision will include active fault models, an improved and more homogeneous earthquake catalogue, and greater epistemic uncertainty through a call for third party source models. This paper presents models of seismicity and ground motion that are currently being developed at Geoscience Australia for the NSHA, as implemented in the OpenQuake software. Weighting of logic tree branches for alternative models are discussed, and how these relate to the fundamental datasets on which they are based. For example, a smoothed seismicity model considers only recent seismicity while source models derived from neotectonic data consider a much longer time history. Final weightings will be determined in consultation with members of the Australian seismological community. This abstract was submitted and presented to the 2016 Australian Earthquake Engineering Society Conference (AEES) ( https://aees.org.au/aees-asian-seismological-commission-conferences/)

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Field Value
Title Development of the Australian National Seismic Hazard Assessment (NSHA) 2018
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/e1985812-a325-4400-bb07-72737ceec88f
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 21/05/2016
Geospatial Coverage
Map data © OpenStreetMap contributors
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Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Development of the Australian National Seismic Hazard Assessment (NSHA) 2018". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/development-of-the-australian-national-seismic-hazard-assessment-nsha-2018