Southwest Seismic Zone of Western Australia: measurement of vertical ground movements by repeat levelling and gravity surveys
This paper presents results of repeat surveys of levelling and gravity, analysed to determine areas of vertical ground movement in the Southwest Seismic Zone, 75-200 km east of Perth. Levelling surveys over parts of the earthquake zone have been made during four periods, starting in 1958. Differences between repeat levelling surveys separated by 10 or more years show areas of vertical ground movement, the areas being 20-50 km across with relative height changes of 50-100 mm amplitude. Some of the vertical ground motion is movement at the time of earthquakes, some is later rebound in the same earthquake areas, and other movement does not appear to be associated with large or small earthquakes and could be due to either elastic strain, or non-seismic faulting. Precise gravity observations at 10 km spacing were made in 1980-81 and repeated in 1983. The differences between the surveys do not show any significant gravity changes. Future studies should be set up to monitor stress, strain and earthquakes in a group of small, diverse test areas, using the global positioning system.
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- Date (Publication)
- 1987-01-01T00:00:00
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/81219
- Cited responsible party
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Role Organisation / Individual Name Details Publisher Bureau of Mineral Resources, Geology and Geophysics
Canberra Author Wellman, P.
1 Author Tracey, R.
2
- Name
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BMR Journal of Australian Geology and Geophysics
- Issue identification
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10:3:225-232
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Role Organisation / Individual Name Details Custodian Corp
Owner Commonwealth of Australia (Geoscience Australia)
Custodian Commonwealth of Australia (Geoscience Australia)
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- Geoscientific information
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))
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Product data repository: Various Formats
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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
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GA Publication
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Journal
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- Keywords
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WA
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- Australian and New Zealand Standard Research Classification (ANZSRC)
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Earth Sciences
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- Keywords
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Published_External
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Creative Commons Attribution 4.0 International Licence
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CC-BY
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4.0
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Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
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- English
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- UTF8
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Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
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Journal article (pdf)
Journal article (pdf)
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pdf
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Unknown
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- Non geographic dataset
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GA Publication
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Source data not available.
Metadata constraints
- Title
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Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
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urn:uuid/fae9173a-70a0-71e4-e044-00144fdd4fa6
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GeoNetwork UUID
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- English
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- Contact
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice
Type of resource
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- Document
- Name
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AGSO BMR Journal
Alternative metadata reference
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Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/81219
- Date info (Revision)
- 2018-04-20T06:08:19
- Date info (Creation)
- 2014-06-03T00:00:00
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
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ISO 19115-3
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Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
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Version 2.0, September 2018
- Citation identifier
- https://pid.geoscience.gov.au/dataset/ga/122551