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Investigating earthquake risk models and uncertainty in probabilistic seismic risk analyses

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Created 20/01/2025

Updated 20/01/2025

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The EQRM is Geoscience Australia's tool for conducting probabilistic seismic hazard and risk assessments. In this report we summarise the sensitivity of EQRM risk estimates to a range of input parameters. The importance of aleatory uncertainity is explored separately for the following components of the EQRM: synthetic earthquake catalogue generation, attenuation, regolith amplification and damage modelling. Different sampling techniques are analysed for incorporating aleatory uncertainty. Event and hazard based approaches to risk estimation are compared. Finally, we demonstrate the impact of using different attenuation models on risk estimates.

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Title Investigating earthquake risk models and uncertainty in probabilistic seismic risk analyses
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/542e28f7-89b7-4928-92ee-abe67039d0bb
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage http://www.ga.gov.au/place-names/PlaceDetails.jsp?submit1=GA1
Data Portal data.gov.au