Product catalogue
The 2018 National Seismic Hazard Assessment for Australia: Earthquake Epicentre Catalogue
The 2018 National Seismic Hazard Assessment (NSHA18) is a flagship Geoscience Australia product, used to support the decisions of the Australian Building Codes Board and Standards Australia to ensure buildings and infrastructure are built to withstand seismic events in Australia. It is also important for the insurance sector and provides a baseline for setting national reinsurance premiumsguides the level of reinsurance premiums. The National Seismic Hazard Assessment Earthquake Epicentre Catalogue (NSHA18-Cat) of historical earthquakes is the authoritative catalogue underpinning the NSHA18. The NSHA18-Cat is compiled from Australian and international sources and combines the highest quality epicentres and magnitudes for the assessment of earthquake hazard in Australia. For the first time in an Australian national seismic hazard assessment, earthquake magnitudes are uniformly expressed in the moment magnitude MW scale, using Australian-specific magnitude conversion equations appropriate for several common magnitude types. The magnitude harmonisation represents a significant advance in our ability to represent earthquake hazard in a uniform manner throughout the country.
Key points and advances on the NSHA18-Cat include:
- The addition of almost three decades worth of additional earthquake data gathered by seismic networks across the Australian continent, relative to hazard assessments from the early 1990s.
- The use of the International Seismological Centre-Global Earthquake Model Catalogue (Version 5) for regional plate boundary source zones;
- An improved methodology for revising local magnitudes due to the historical use of inappropriate magnitude attenuation formulae using a consistent and objective methodology;
- The development of conversion equations from original magnitude types to MW specific for the Australian earthquake catalogue. This ensures consistency between rates of earthquake recurrence and ground-motion models in hazard calculations;
- The development of new magnitude completeness models in terms of MW.
The combination of these new data and advances demonstrates global best practice and evidence based science for undertaking national-scale earthquake hazard assessments. The earthquake epicentre solutions are provided in simple comma separated value and shapefile formats and are attached to this report.
Simple
Identification info
- Date (Creation)
- 2018-09-18T00:00:00
- Date (Publication)
- 2018-10-10T03:58:21
- Date (Revision)
- 2018-10-16T03:38:35
- Date (Revision)
- 2018-10-16T23:54:56
- Date (Revision)
- 2018-11-05T08:57:44
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/123041
- Citation identifier
- Digital Object Identifier/http://dx.doi.org/10.11636/Record.2018.030
- Cited responsible party
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Role Organisation / Individual Name Details Author Allen, T.
Author Leonard, M.
Author Ghasemi, H.
Author Gibson, G.
- Name
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Record
- Issue identification
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2018/030
- Purpose
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This Record is the fourth in the series of Records and datasets that support the release of the NSHA18 (overarching overview provided at ecat 123020)
- Status
- Final
- Point of contact
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Role Organisation / Individual Name Details Point of contact Allen, T.
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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- 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
-
Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Associated resource
- Association Type
- Informed
- Title
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The 2023 National Seismic Hazard Assessment for Australia. Model Overview
- Citation identifier
- 148969
- Citation identifier
- 86d9ffcf-8bbf-4aad-b6c4-70fcae2be457
- 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)
- Distribution format
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pdf
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- 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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Geoscience Australia develops the National Seismic Hazard Assessment (NSHA) for Australia. The NSHA defines the level of earthquake ground shaking across Australia that has a given likelihood of being exceeded in a given time period. Knowing how the ground-shaking hazard varies across Australia allows higher hazard areas to be identified and prioritised for the development of mitigation strategies so communities can be more resilient to earthquake events.
The NSHA also provides key information to the Australian Government Building Codes Board, so buildings and infrastructure design standards can be updated to ensure they can withstand earthquake events in Australia. Geoscience Australia schedules the update to the NSHA with the update to the earthquake loading standard, so the committee can consider any changes to the seismic hazard risk of Australia, and whether the code needs to be amended to reflect this. The 2018 update was scheduled to inform the 2017 revision of the earthquake loading standard.
Promotion of project via http://www.ga.gov.au/about/projects/safety/nsha
- Hierarchy level
- Document
Metadata constraints
- Title
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Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/68196729-da2a-4c2c-8df4-cca4ce278d60
- Title
-
GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
-
Role Organisation / Individual Name Details Point of contact Allen, T.
Commonwealth of Australia (Geoscience Australia)
Voice
Type of resource
- Resource scope
- Document
- Name
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GA publication: Record
Alternative metadata reference
- Title
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Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/123041
- 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