The seismicity and tectonics of the Macquarie Ridge
The Macquarie Ridge extends over 1200 km from southern New Zealand to a triple junction of the Pacific, Australian and Antarctic plates near 61 ° 30'S, 161 0 00'E. Large earthquakes occur frequently on the ridge, with an average return period of one year for an event of magnitude 6.2 or mo...
Published in: | Papers and Proceedings of The Royal Society of Tasmania |
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Language: | English |
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1988
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Online Access: | https://eprints.utas.edu.au/13865/ https://eprints.utas.edu.au/13865/4/1988__Jones_seismicity.pdf |
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ftunivtasmania:oai:eprints.utas.edu.au:13865 2023-05-15T14:00:15+02:00 The seismicity and tectonics of the Macquarie Ridge Jones, TD McCue, KF 1988 application/pdf https://eprints.utas.edu.au/13865/ https://eprints.utas.edu.au/13865/4/1988__Jones_seismicity.pdf en eng https://eprints.utas.edu.au/13865/4/1988__Jones_seismicity.pdf Jones, TD and McCue, KF 1988 , 'The seismicity and tectonics of the Macquarie Ridge' , Papers and Proceedings of the Royal Society of Tasmania, vol. 122, no. 1 , pp. 51-57 , doi:10.26749/rstpp.122.1.51 <http://dx.doi.org/10.26749/rstpp.122.1.51>. cc_utas Royal Society of Tasmania RST Van Diemens Land natural history science ecology taxonomy botany zoology geology geography papers & proceedings Australia UTAS Library Article PeerReviewed 1988 ftunivtasmania https://doi.org/10.26749/rstpp.122.1.51 2020-05-30T07:27:38Z The Macquarie Ridge extends over 1200 km from southern New Zealand to a triple junction of the Pacific, Australian and Antarctic plates near 61 ° 30'S, 161 0 00'E. Large earthquakes occur frequently on the ridge, with an average return period of one year for an event of magnitude 6.2 or more and 10 years for one of magnitude 7.2 or more. Analysis of 16 focal mechanism solutions indicates that the direction of the principal stress is consistently horizontal, and along the northern and central ridge segments it strikes east-west. In the southern ridge segment, its azimuth is poorly defined but appears to rotate towards the northeast with increasing southerly latitude. North of 51 oS, the characteristic fault displacement is along reverse dip-slip faults, whilst south of 51 0 S, fault motion is predominantly by right-lateral strike-slip; throughout, the strike direction is parallel to the ridge axis. Article in Journal/Newspaper Antarc* Antarctic University of Tasmania: UTas ePrints Antarctic Pacific New Zealand Papers and Proceedings of The Royal Society of Tasmania 122 1 51 57 |
institution |
Open Polar |
collection |
University of Tasmania: UTas ePrints |
op_collection_id |
ftunivtasmania |
language |
English |
topic |
Royal Society of Tasmania RST Van Diemens Land natural history science ecology taxonomy botany zoology geology geography papers & proceedings Australia UTAS Library |
spellingShingle |
Royal Society of Tasmania RST Van Diemens Land natural history science ecology taxonomy botany zoology geology geography papers & proceedings Australia UTAS Library Jones, TD McCue, KF The seismicity and tectonics of the Macquarie Ridge |
topic_facet |
Royal Society of Tasmania RST Van Diemens Land natural history science ecology taxonomy botany zoology geology geography papers & proceedings Australia UTAS Library |
description |
The Macquarie Ridge extends over 1200 km from southern New Zealand to a triple junction of the Pacific, Australian and Antarctic plates near 61 ° 30'S, 161 0 00'E. Large earthquakes occur frequently on the ridge, with an average return period of one year for an event of magnitude 6.2 or more and 10 years for one of magnitude 7.2 or more. Analysis of 16 focal mechanism solutions indicates that the direction of the principal stress is consistently horizontal, and along the northern and central ridge segments it strikes east-west. In the southern ridge segment, its azimuth is poorly defined but appears to rotate towards the northeast with increasing southerly latitude. North of 51 oS, the characteristic fault displacement is along reverse dip-slip faults, whilst south of 51 0 S, fault motion is predominantly by right-lateral strike-slip; throughout, the strike direction is parallel to the ridge axis. |
format |
Article in Journal/Newspaper |
author |
Jones, TD McCue, KF |
author_facet |
Jones, TD McCue, KF |
author_sort |
Jones, TD |
title |
The seismicity and tectonics of the Macquarie Ridge |
title_short |
The seismicity and tectonics of the Macquarie Ridge |
title_full |
The seismicity and tectonics of the Macquarie Ridge |
title_fullStr |
The seismicity and tectonics of the Macquarie Ridge |
title_full_unstemmed |
The seismicity and tectonics of the Macquarie Ridge |
title_sort |
seismicity and tectonics of the macquarie ridge |
publishDate |
1988 |
url |
https://eprints.utas.edu.au/13865/ https://eprints.utas.edu.au/13865/4/1988__Jones_seismicity.pdf |
geographic |
Antarctic Pacific New Zealand |
geographic_facet |
Antarctic Pacific New Zealand |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
https://eprints.utas.edu.au/13865/4/1988__Jones_seismicity.pdf Jones, TD and McCue, KF 1988 , 'The seismicity and tectonics of the Macquarie Ridge' , Papers and Proceedings of the Royal Society of Tasmania, vol. 122, no. 1 , pp. 51-57 , doi:10.26749/rstpp.122.1.51 <http://dx.doi.org/10.26749/rstpp.122.1.51>. |
op_rights |
cc_utas |
op_doi |
https://doi.org/10.26749/rstpp.122.1.51 |
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Papers and Proceedings of The Royal Society of Tasmania |
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122 |
container_issue |
1 |
container_start_page |
51 |
op_container_end_page |
57 |
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