Authors / CoAuthors
Miller, M.S. | Pickle, R. | Murdie, R. | Yuan, H. | Allen, T. | Gessner, K. | Kennett, B.L.N. | Whitney, J.
Abstract
The geological structure of southwest Australia comprises a rich, complex record of Precambrian cratonization and Phanerozoic continental breakup. Despite the stable continental cratonic geologic history, over the past five decades the southwest of Western Australia has been the most seismically active region in continental Australia though the reason for this activity is not yet well understood. The Southwest Australia Seismic Network (SWAN) is a temporary broadband network of 27 stations that was designed to both record local earthquakes for seismic hazard applications and provide the opportunity to dramatically improve the rendering of 3-D seismic structure in the crust and mantle lithosphere. Such seismic data are essential for better characterization of the location, depth and attenuation of the regional earthquakes, and hence understanding of earthquake hazard. During the deployment of these 27 broadband instruments, a significant earthquake swarm occurred that included three earthquakes with local magnitude (MLa) ≥ 4.0, and the network was supplemented by an additional six short-term nodal seismometers at 10 separate sites in early 2022, as a rapid deployment to monitor this swarm activity. The SWAN experiment has been continuously recording since late 2020 and will continue into 2023. These data are archived at the FDSN recognized Australian Passive Seismic (AusPass) Data center under network code 2P and will be publicly available in 2025. <b>Citation:</b> Meghan S. Miller, Robert Pickle, Ruth Murdie, Huaiyu Yuan, Trevor I. Allen, Klaus Gessner, Brain L. N. Kennett, Justin Whitney; Southwest Australia Seismic Network (SWAN): Recording Earthquakes in Australia’s Most Active Seismic Zone. <i>Seismological Research Letters </i><b>2023</b>;; 94 (2A): 999–1011. doi: https://doi.org/10.1785/0220220323
Product Type
document
eCat Id
147500
Contact for the resource
Point of contact
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Resource provider
Point of contact
- Contact instructions
- Place and Communities
Keywords
- theme.ANZRC Fields of Research.rdf
-
- EARTH SCIENCESSeismology and Seismic ExplorationEarthquake Engineering
- ( Discipline )
-
- earthquake hazard
- ( Process )
-
- seismic monitoring
- ( Place )
-
- Yilgarn Craton
-
- Published_External
Publication Date
2024-03-20T05:51:04
Creation Date
2022-11-30T16:36:00
Security Constraints
Legal Constraints
Status
completed
Purpose
Manuscript for publication in the Seismological Research Letters
Maintenance Information
notPlanned
Topic Category
geoscientificInformation
Series Information
Seismological Research Letters Volume 94, Number 2A, March 2023 999-1011
Lineage
This work is supported by the Australian Research Council (ARC) funded ‘Enhanced 3-D Seismic structure for Southwest Australia’ Linkage Project LP180101118
Parent Information
Extents
[-35.549, -26.9492, 112.6168, 122.8109]
Reference System
Spatial Resolution
Service Information
Associations
Source Information