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Progress towards an understanding of tsunami risk in NSW

Created 16/10/2025

Updated 16/10/2025

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Tsunamis pose considerable risk to coastal communities around the globe and understanding this risk is a key aspect of emergency management and risk reduction. This paper explores the nature and extent of tsunami hazard to NSW coastal communities and informs tsunami emergency planning and management. We outline the results of recent risk scoping which have examined sources of tsunami hazard, and tsunami history together with results of inundation studies for selected sites and discuss the level of tsunami risk to these NSW communities. We also outline how the results have complimented research by the Australian Bureau of Meteorology in confirming tsunami warning thresholds for NSW. Work undertaken to date indicates the coast of NSW has a moderate tsunami hazard level. Whilst historical impact of tsunami inundation in NSW has been relatively minor, and generally restricted to marine based events, the modelling of selected earthquake generated events indicates the potential for land inundation particularly at high (rare) return periods. Low lying populated communities around estuary foreshores are particularly at risk although results also indicate the potential for inundation of open coast sites at very high (very rare) return periods. The results confirm the need for and support the ongoing collaborative development of emergency management arrangements for tsunami.

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Field Value
Title Progress towards an understanding of tsunami risk in NSW
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/2ba8e928-babf-4127-89c3-db8a2dd03d1c
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 22/04/2018
Geospatial Coverage Australia
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Progress towards an understanding of tsunami risk in NSW". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/progress-towards-an-understanding-of-tsunami-risk-in-nsw