Authors / CoAuthors
Ryu, H. | Wehner, M. | Edwards, M. | Allen, T. | Ebrahimi, R.
Abstract
<div>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. </div><div><br></div>This paper was presented to the 2022 Australian Earthquake Engineering Society (AEES) Conference 24-25 November (https://aees.org.au/aees-conference-2022/)
Product Type
document
eCat Id
147334
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Keywords
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- earthquake risk
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- resilence
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- Tasmania
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- mitigation
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- Masonry
- theme.ANZRC Fields of Research.rdf
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- Seismology and Seismic Exploration
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- Published_External
Publication Date
2023-06-01T06:54:44
Creation Date
2022-10-22T16:00:00
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completed
Purpose
Australian Earthquake Engineering Society 2022 National Conference
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asNeeded
Topic Category
geoscientificInformation
Series Information
Australian Earthquake Engineering Society (AEES) Conference 24-25 November 2022 Mt Macedon VIC
Lineage
<div>Earthquake Risk and Mitigation Assessment in Tasmania (ERMAT) </div>
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[-54.75, -9.2402, 112.92, 159.11]
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