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Earthquake Risk and Mitigation Assessment in Tasmania State-wide Assessment of Risk, Resilience and Mitigation

Created 16/10/2025

Updated 16/10/2025

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We performed an earthquake risk assessment of the state of Tasmania through a collaboration between the Tasmania Department of State Growth and Geoscience Australia with geotechnical and geological support from Mineral Resources Tasmania (MRT). We developed local surface earthquake hazard maps for Tasmania, focusing on the twenty largest communities, based on the 2018 National Seismic Hazard Assessment and seismic site conditions map for Australia augmented by geotechnical information provided by MRT. For the building exposure database, the National Exposure Information System was augmented with an engineering survey of Hobart central business district (CBD) undertaken by GA. We used GA’s current vulnerability functions including a range of models for high-risk unreinforced masonry buildings (URM). With a focus on the Hobart CBD, retrofit measures were applied to the URM building types in order to quantify the effectiveness of mitigation. This study provided a synoptic state-wide view that enabled the identification of communities of high risk and low resilience by combining the damage related risk with the Australian Disaster Resilience Index. In addition, three earthquake scenario events centred on Hobart were modelled along with the impact reduction achieved through a virtual retrofit of old URM buildings in the Hobart CBD. 

This paper was presented to the 2022 Australian Earthquake Engineering Society (AEES) Conference 24-25 November (https://aees.org.au/aees-conference-2022/)

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Field Value
Title Earthquake Risk and Mitigation Assessment in Tasmania State-wide Assessment of Risk, Resilience and Mitigation
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/acb9b511-89c9-49e6-8a97-5c1eaadf792f
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 01/06/2023
Geospatial Coverage
Map data © OpenStreetMap contributors
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      ],
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      ]
    ]
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  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Earthquake Risk and Mitigation Assessment in Tasmania State-wide Assessment of Risk, Resilience and Mitigation". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/earthquake-risk-and-mitigation-assessment-in-tasmania-state-wide-assessment-of-risk-resilience-