Towards a homogeneous earthquake catalogue for Australia
An earthquake catalogue based on the moment magnitude scale is required for calculation of seismic hazard in Australia. However, the estimation of moment magnitudes for small to moderate sized earthquakes is not a routine process at seismic observatories, resulting in a catalogue mainly based on the local magnitude scale for Australia. In this study we explore the application of an automated procedure to estimate moment magnitudes by minimizing the misfit between observed and synthetic displacement spectra. We compile a reference catalogue of 15 earthquakes with moment magnitude values between 3.8 and 5.4 which were based on previous studies. The moment magnitudes were then recalculated and we find that the estimated moment magnitudes are in good agreement with reference values with differences mainly lower than 0.2. However, the reported local magnitudes of the selected events are consistently higher than the reference values with differences between 0.3 and 1.0. The automated procedure will be applied to compute moment magnitudes of the well recorded events in Australia, and to derive a scaling relation between local magnitude and moment magnitude.
This abstract was submitted and presented to the 2016 Australian Earthquake Engineering Society Conference (AEES) ( https://aees.org.au/aees-asian-seismological-commission-conferences/)
Simple
Identification info
- Date (Creation)
- 2016-05-20T00:00:00
- Date (Publication)
- 2023-10-24T05:04:21
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/100381
- Cited responsible party
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Role Organisation / Individual Name Details Author Ghasemi, H.
Place and Communities Internal Contact Author Griffin, J.
Place and Communities Internal Contact Author Heimann, S.
External Contact Author Leonard, M.
External Contact Author Allen, T.
Place and Communities Internal Contact Publisher Commonwealth of Australia (Geoscience Australia)
Voice
- Name
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Australian Earthquake Engineering Society 2016 Conference, Nov 25-27, Melbourne, Vic
- Purpose
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Abstract submitted to Australian Earthquake Engineering Society 2016 Conference
- Status
- Completed
- Point of contact
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Resource provider Place and Communities Division
External Contact Point of contact Griffin, J.
Place and Communities Internal Contact
- Spatial representation type
- Topic category
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- Geoscientific information
Extent
Extent
))
- Maintenance and update frequency
- Not planned
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
- theme.ANZRC Fields of Research.rdf
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EARTH SCIENCES
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- Keywords
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seismic hazard assessment
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- Keywords
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earthquake catalogue
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- Keywords
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moment magnitude
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- Keywords
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Published_External
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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
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- License
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(c) Commonwealth of Australia (Geoscience Australia) 2016
Resource constraints
- Title
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Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Language
- English
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- UTF8
Distribution Information
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Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice
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Link to Conference Page
Link to Conference Page
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- OnLine resource
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Link to Abstract
Link to Abstract
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Resource lineage
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Abstract submitted to Australian Earthquake Engineering Society 2016 Conference
- Hierarchy level
- Dataset
Metadata constraints
- Title
-
Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
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urn:uuid/e781af72-7ce2-4d44-8e68-766e02a1dd5d
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GeoNetwork UUID
- Language
- English
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- UTF8
- Contact
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Griffin, J.
Place and Communities Internal Contact
Type of resource
- Resource scope
- Document
- Name
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Conference paper
Alternative metadata reference
- Title
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Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/100381
- Date info (Creation)
- 2016-05-20T14:23:02
- Date info (Revision)
- 2016-05-20T16:26:16
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