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Exposure of Australia’s Infrastructure to Ground Surface Rupture Hazard

Description: 

Australia has hosted at least 11 surface-rupturing earthquakes since 1960, with moment magnitudes (Mw) between 4.7 and 6.6. The Australian Neotectonic Features Database (NFD) hosts an inventory of over 400 Australian intraplate faults, fault-related folds, and other features that are demonstrated or suspected to relate to earthquakes large enough to deform the Earth's surface. Recent re-analyses of earthquake data have resulted in updated scaling relationships and slip distribution functions, for utility in probabilistic fault displacement hazard analyses. Geospatial comparisons of Australia’s energy, resource, and transport infrastructure (e.g., dams, pipelines, transport) with historical and neotectonic ground surface rupture traces enables development of a proximity / overlap-based rating scheme for prioritising infrastructure mitigation / adaptation measures. This talk will present preliminary results from a suite of ongoing research programs on fault mapping, paleoseismology, and infrastructure exposure analyses at a variety of spatial scales across the continent.

Session: Assessing Seismic Hazard for Critical Facilities and Infrastructure – Insights and Challenges - II

Type: Oral

Date: 5/3/2024

Presentation Time: 04:45 PM (local time)

Presenting Author: Mark

Student Presenter: No

Invited Presentation: 

Authors