Towards an Earthquake Ground-Motion Database for Western and Central Australia
A ground-motion dataset from moderate-to-large magnitude earthquakes is compiled for earthquakes occurring in Proterozoic and Archean terranes of the Australian continental crust. Data, which are predominantly weak-motion velocity recordings, are compiled from low-sample-rate continuous waveform buffers and segmented high-sample-rate data (where available) recorded by the Australian National Seismograph Network (ANSN). Additional data are retrieved from various temporary deployments and, more recently, from the Incorporated Research Institutions for Seismology (IRIS) data centre. All raw data were first converted to a uniform miniSEED format from various binary and ASCII formats used over time. Corresponding instrument metadata is compiled in the standard FDSN StationXML format. The dataset currently contains 1497 earthquake recordings from 164 earthquakes occurring between 1990 and 2019. The magnitudes of earthquakes within the dataset range from MW 2.5 to 6.1 with hypocentral distances up to 1500 km. The time-series data are consistently processed to correct for the instrument response and to reduce the effect of background noise. A range of engineering parameters are calculated in time and frequency domains using the USGS’s ground-motion processing software, “gmprocess”. Numerous near-source recordings exceed peak accelerations of 0.10 g and range up to 0.66 g, while the maximum peak velocity of the dataset exceeds 27 cm/s. In spite of the limited number of seismic stations located throughout the Australian continental landmass, the dataset compiled herein will improve characterisation of ground-motion attenuation in the region and will provide an excellent supplement to ground-motion datasets collected in analogue seismotectonic regions worldwide.
Presented at the 2021 Seismological Society of America (SSA) Annual Meeting
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Identification info
- Date (Creation)
- 2021-01-08T14:53:00
- Date (Publication)
- 2024-08-21T06:08:35
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/144656
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Digital Obejct Identifier
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Role Organisation / Individual Name Details Publisher Commonwealth of Australia (Geoscience Australia)
Voice Author Ghasemi, H.
Place and Communities Internal Contact Author Allen, T.
Place and Communities Internal Contact
- Name
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Seismological Society of America (SSA) Annual Meeting, 19-23 April 2021, Virtual
- Purpose
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To be presented at the 2021 Seismological Society of America (SSA) Annual Meeting
- 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 Ghasemi, H.
Place and Communities Internal Contact
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- Geoscientific information
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))
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- As needed
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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
- theme.ANZRC Fields of Research.rdf
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EARTH SCIENCES
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- Keywords
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ground-motion dataset
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Australian National Seismograph Network - ANSN
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- Keywords
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earthquake monitoring
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- Keywords
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Published_External
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Resource constraints
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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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© Commonwealth of Australia (Geoscience Australia) 2021
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Australian Government Security ClassificationSystem
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- 2018-11-01T00:00:00
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- Unclassified
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- English
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Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
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Link to Conference Page
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- OnLine resource
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Link to Conference Proceedings
Link to Conference Proceedings
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- Statement
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To be presented at the 2021 Seismological Society of America (SSA) Annual Meeting
Metadata constraints
- Title
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Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
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urn:uuid/c59c93ce-fbb9-41c2-a6b4-6fa6362c26b1
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GeoNetwork UUID
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- 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 Owner Ghasemi, H
PSCD Internal Contact Point of contact Ghasemi, H.
Place and Communities Internal Contact
Type of resource
- Resource scope
- Document
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Conference Abstract
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- Title
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Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/144656
- Date info (Creation)
- 2021-01-08T03:51:16
- Date info (Revision)
- 2021-01-08T03:51:16
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