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

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Created 20/01/2025

Updated 20/01/2025

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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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Title Earthquake Risk and Mitigation Assessment in Tasmania State-wide Assessment of Risk, Resilience and Mitigation
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/5e9278e5-079a-4d7a-91ac-316911307b21
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 01/06/2023
Geospatial Coverage {"type": "Polygon", "coordinates": [[[112.92, -54.75], [159.11, -54.75], [159.11, -9.2402], [112.92, -9.2402], [112.92, -54.75]]]}
Data Portal data.gov.au

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This dataset was originally found on data.gov.au "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://devweb.dga.links.com.au/data/dataset/earthquake-risk-and-mitigation-assessment-in-tasmania-state-wide-assessment-of-risk-resilience-

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