Large earthquake recurrence in the Snowy Monaro region, first dated Holocene rupture and strike slip fault evidence for Australia  


Authors / CoAuthors

Griffin, J. | Clark, D. | Kemp, J. | Stirling, M. | King, T. | La Greca, J. | Sharma, A. | Quigley, M. | Ninis, D. | Pietsch, T. | Eaton, B. | Wilcken, K.

Abstract

<div>The Snowy Monaro region hosts major infrastructure critical to Australia’s energy and water security. It also hosts a number of active faults capable of hosting large earthquakes that may impact this infrastructure. However, to date the hazard and consequent risk from these faults has been poorly characterised. This study presents the results of geological investigations to understand how often large earthquakes occur on these faults, and how big they may be, with a focus on the Jindabyne Thrust and the neighbouring Hill Top Fault. The investigation shows at least three earthquakes on the Jindabyne Thrust, with the most recent event occurring within the Holocene, and also demonstrate late Pleistocene activity of the Hill Top Fault. The new insights into earthquake activity rates have implications for our understanding of seismic hazard and risk in the Snowy Monaro region, and elsewhere in the southeast highlands of Australia. Presented at the 2024 PATA Days (Paleoseismology, Active Tectonics, and Archaeoseismology) workshop, Chile

Product Type

document

eCat Id

149764

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  Resource provider

 

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Commonwealth of Australia (Geoscience Australia)  
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
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Keywords

( Project )
  • seismic hazard
( Project )
  • earthquake geology
  • neotectonic features
  • active fault
  • Paleoseismology
  • trench
  • earthquake geology
theme.ANZRC Fields of Research.rdf
  • Structural geology and tectonicsGeochronologyNatural hazards
  • Published_External

Publication Date

2025-02-18T22:44:59

Creation Date

2024-07-20T16:00:00

Security Constraints

Australian Government Security Classification System    

Classification - unclassified

Legal Constraints

Creative Commons Attribution 4.0 International Licence    

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Status

completed

Purpose

Extended conference abstract for the 2024 PATA Days (Paleoseismology, Active Tectonics, and Archaeoseismology) workshop. This abstract provides a brief overview of the work to be presented, and will be published in the workshop proceedings.

Maintenance Information

asNeeded

Topic Category

geoscientificInformation

Series Information

PATA Days (Paleoseismology, Active Tectonics, and Archaeoseismology) workshop, 6-11 October 2024, Los Andes, Chile

Lineage

<div>19/07/2024 - document sent for internal review, Content Manager document: D2024-41241</div><div>29/07/2024 - finalised document following internal review, Content Manager document: D2024-42396</div><div>01/08/2023 - minor edit, updated date of CCBY to 2024, same Content Manager document</div>

Parent Information

Extents

[-36.6038, -35.6845, 147.8492, 149.2704]

Reference System

Spatial Resolution

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Link to Abstract  

Link to Conference Page  

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