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Australian Seismic Site Conditions Map

The Australian Seismic Site Conditions Map (ASSCM) uses information about surficial geology (regolith) as a proxy for the potential behaviour of geological materials under the influence of seismic ground shaking, predominantly in the context of amplification of earthquake energy.


The ASSCM represents a revision and upgrade of the existing National Regolith Site Classification Map of Australia (NRSCM) published in 2007 (McPherson & Hall, 2007). Key improvements to the new product include the integration of new and updated geological data in a more robust spatial reference frame. In addition, a fully documented workflow has been developed, enabling the product to be efficiently updated as required.


Comparison of different scale input geological data sets demonstrates the power of higher resolution data to provide better discrimination of site conditions - an important factor in determining the reliability of hazard and risk modelling outputs. The implementation of a weathering intensity index captures the reduced strength (and possible minor increase in ground shaking potential) of substrate in bedrock-dominated environments. Accuracy and consistency checking of the ASSCM (and the NRSCM) against geotechnical data from the Newcastle (NSW) and Perth (WA) regions shows good agreement between the ASSCM site condition (site class) mapping and field measurements In both areas the ASSCM out-performs the existing NRSCM.


The ASSCM represents a repeatable and publicly available data set representing Australian seismic site conditions. The generally improved resolution and spatial reliability relative to the existing NRSCM establish the ASSCM as a key input for incorporating seismic site conditions into seismic hazard analysis and modelling in Australia.

Simple

Identification info

Date (Creation)
2017-02-02T00:00:00
Date (Publication)
2017-06-09T11:00:00
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/103640

Citation identifier
Digital Object Identifier/http://dx.doi.org/10.4225/25/594711cc71020

Cited responsible party
Role Organisation / Individual Name Details
Author

McPherson, A.A.

andrew.mcpherson@ga.gov.au
Collaborator

Moore, D.

duncan.moore@ga.gov.au
Status
Point of contact
Role Organisation / Individual Name Details
Custodian

McPherson, A.A.

Commonwealth of Australia (Geoscience Australia)

Voice
Spatial representation type
Vector

Spatial resolution

Level of detail

1:25 000 - 1:1 000 000

Topic category
  • Geoscientific information

Extent

Temporal extent

Time period
2017 2017

Extent

N
S
E
W


Maintenance and update frequency
Not planned

Resource format

Title

Product data repository: Various Formats

Website

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

Keywords
  • site classification

Keywords
  • seismic

Keywords
  • site conditions

Keywords
  • earthquake

Keywords
  • ground shaking

Keywords
  • site response

Australian and New Zealand Standard Research Classification: Fields of Research
  • Earth Sciences

Keywords
  • Published_External

Resource constraints

Title

Creative Commons Attribution 4.0 International Licence

Alternate title

CC-BY

Edition

4.0

Website

http://creativecommons.org/licenses/

Access constraints
License
Use constraints
License

Resource constraints

Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified
Language
English
Character encoding
UTF8

Distribution Information

Distributor contact
Role Organisation / Individual Name Details
Distributor

Commonwealth of Australia (Geoscience Australia)

Voice
OnLine resource

Related product: A revised seismic site conditions map for Australia

Related product: A revised seismic site conditions map for Australia

OnLine resource

Download the data package (ESRI Geodatabase)

Download the data package (ESRI Geodatabase)

OnLine resource

Download the data package (ESRI Geopackage)

Download the data package (ESRI Geopackage)

OnLine resource

Download the data package (ESRI Shape)

Download the data package (ESRI Shape)

Resource lineage

Statement

Processes and workflows implemented in the development of the product are documented in McPherson (2017) [refer particularly to Section 3].


McPherson, A. A. (2017). A Revised Seismic Site Conditions Map for Australia. Record 2017/XX. Geoscience Australia, Canberra. DOI

Hierarchy level
Dataset

Reference System Information

Reference system identifier
EPSG/GDA94 (EPSG:4283)

Title

European Petroleum Survey Group (EPSG) Geodetic Parameter Registry

Date (Publication)
2008-11-12T00:00:00
Cited responsible party
Role Organisation / Individual Name Details

European Petroleum Survey Group

http://www.epsg-registry.org/

Metadata constraints

Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified

Metadata

Metadata identifier
urn:uuid/d7c39dcc-6987-46fc-a3ad-f74ac93afab6

Title

GeoNetwork UUID

Language
English
Character encoding
UTF8
Contact
Role Organisation / Individual Name Details
Author

McPherson, A.A.

Commonwealth of Australia (Geoscience Australia)

Voice

Type of resource

Resource scope
Dataset

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/103640

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/d7c39dcc-6987-46fc-a3ad-f74ac93afab6

Date info (Creation)
2017-01-10T11:25:20
Date info (Revision)
2018-04-20T06:00:19

Metadata standard

Title

AU/NZS ISO 19115-1:2014

Metadata standard

Title

ISO 19115-1:2014

Metadata standard

Title

ISO 19115-3

Title

Geoscience Australia Community Metadata Profile of ISO 19115-1:2014

Edition

Version 2.0, September 2018

Citation identifier
https://pid.geoscience.gov.au/dataset/ga/122551

 
 

Spatial extent

N
S
E
W


Keywords

earthquake ground shaking seismic site classification site conditions site response
Australian and New Zealand Standard Research Classification: Fields of Research
Earth Sciences

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Associated resources

Not available


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