Product catalogue
Earthquake sources of the Australian plate margin: Revised models for the 2018 national tsunami and earthquake hazard assessments
Located within an intraplate setting, continental Australia has a relatively low rate of seismicity compared with its surrounding plate boundary regions. However, the plate boundaries to the north and east of Australia host significant earthquakes that can impact Australia. Large plate boundary earthquakes have historically generated damaging ground shaking in northern Australia, including Darwin. Large submarine earthquakes have historically generated tsunami impacting the coastline of Australia.
Previous studies of tsunami hazard in Australia have focussed on the threat from major subduction zones such as the Sunda and Kermadec Arcs. Although still subject to uncertainty, our understanding of the location, geometry and convergence rates of these subduction zones is established by global tectonic models. Conversely, actively deforming regions in central and eastern Indonesia, the Papua New Guinea region and the Macquarie Ridge region are less well defined, with deformation being more continuous and less easily partitioned onto discrete known structures. A number of recently published geological, geodetic and seismological studies are providing new insights into present-day active tectonics of these regions, providing a basis for updating earthquake source models for earthquake and tsunami hazard assessment.
This report details updates to earthquake source models in active tectonic regions along the Australian plate boundary, with a primary focus on regions to the north of Australia, and a subsidiary focus on the Puyesgur-Macquarie Ridge-Hjort plate boundary south of New Zealand. The motivation for updating these source models is threefold:
1. To update regional source models for the 2018 revision of the Australian probabilistic tsunami hazard assessment (PTHA18);
2. To update regional source models for the 2018 revision of the Australian national seismic hazard assessment (NSHA18); and
3. To provide an updated database of earthquake source models for tsunami hazard assessment in central and eastern Indonesia, in support of work funded through the Department of Foreign Affairs and Trade (DFAT) DMInnovation program.
Simple
Identification info
- Date (Creation)
- 2018-09-18T00:00:00
- Date (Publication)
- 2018-10-10T04:08:24
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/123048
- Citation identifier
- Digital Object Identifier/http://dx.doi.org/10.11636/Record.2018.031
- Cited responsible party
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Role Organisation / Individual Name Details Author Griffin, J.
Author Davies, G.
- Name
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Record
- Issue identification
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2018/031
- Purpose
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This Record is the fifth in the series of Records and datasets that support the release of the NSHA18 (overarching overview provided at ecat 123020)
- Status
- Point of contact
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Role Organisation / Individual Name Details Point of contact Griffin, J.
Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Davies, G.
Commonwealth of Australia (Geoscience Australia)
Voice Resource provider Positioning and Community Safety Division
Commonwealth of Australia (Geoscience Australia)
Voice
- Spatial representation type
- Topic category
-
- Geoscientific information
Extent
))
- Maintenance and update frequency
- As needed
Resource format
- Title
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Product data repository: Various Formats
- Website
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Data Store directory containing the digital product files
Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes
- Discipline
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earthquake hazard
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- Discipline
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tsunami hazard
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- Product
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Published_External
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- Keywords
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HVC_144647
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Resource constraints
- Title
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Creative Commons Attribution 4.0 International Licence
- Alternate title
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CC-BY
- Edition
-
4.0
- Access constraints
- License
- Use constraints
- License
Resource constraints
- Title
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Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
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Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice
- OnLine resource
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Download the Record (pdf)
Download the Record (pdf)
- OnLine resource
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Related product: Earthquake sources of the Australian plate margin: data for the 2018 national tsunami and earthquake hazard assessments
Related product: Earthquake sources of the Australian plate margin: data for the 2018 national tsunami and earthquake hazard assessments
- OnLine resource
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Related product: NSHA18 catalogue
Related product: NSHA18 catalogue
- OnLine resource
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The 2018 National Seismic Hazard Assessment for Australia
The 2018 National Seismic Hazard Assessment for Australia
Resource lineage
- Statement
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Not supplied
- Hierarchy level
- Document
Metadata constraints
- Title
-
Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/ea06c973-163d-47bc-b332-f245163e103b
- Title
-
GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
-
Role Organisation / Individual Name Details Point of contact Griffin, J.
Commonwealth of Australia (Geoscience Australia)
Voice
Type of resource
- Resource scope
- Document
- Name
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GA publication: Record
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/123048
- Date info (Creation)
- 2018-05-04T03:37:56
- Date info (Revision)
- 2018-05-04T03:38:12
Metadata standard
- Title
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AU/NZS ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-3
- Title
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Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
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Version 2.0, September 2018
- Citation identifier
- https://pid.geoscience.gov.au/dataset/ga/122551