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Understanding the seismicity and tectonic patterns along the east coast of South Africa using geophysical and geospatial techniques
Thesis (PhD (Geology))--University of Pretoria, 2023.
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| Format: | Thesis |
| Language: | English |
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University of Pretoria
2023
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| _version_ | 1867613568620298240 |
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| access_status_str | Open Access |
| author2 | Kijko, Andrzej |
| author_browse | Kijko, Andrzej |
| author_facet | Kijko, Andrzej |
| collection | Thesis |
| dc_rights_str_mv | © 2022 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Thesis (PhD (Geology))--University of Pretoria, 2023. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/89502 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:38:13.361Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/89502 Understanding the seismicity and tectonic patterns along the east coast of South Africa using geophysical and geospatial techniques Kijko, Andrzej u12213889@tuks.co.za Singh, Mayshree Mapuranga, Victor Philip Seismicity Seismotectonics Geophysics KwaZulu-Natal Seismic Hazard UCTD Thesis (PhD (Geology))--University of Pretoria, 2023. The seismicity and seismotectonic setting of KwaZulu-Natal were studied using macroseismic data from two recent earthquakes in the province. It was shown that seismic activity is taking place along pre-existing zones of weakness which are currently undergoing reactivation. The earthquakes studied damaged low-cost houses more than well-built houses located in affluent suburbs, implying a greater need for strict enforcement of building codes relating to seismic loading in South Africa. An intensity-based attenuation relationship was calculated. It was shown that KwaZulu-Natal is vulnerable to tsunamis. Geophysical data was used to shed light on the crustal structure of KwaZulu-Natal. This produced 2.5D models of potential field data showing that the Natal Metamorphic Belt obducted northwards onto the southern margin of the Kaapvaal Craton where tectonic activity is still taking place. The approach of using 2.5D modelling of gravity and magnetic data applied in this study may serve as a benchmark procedure of seismogenic source delineation in South Africa. Geology PhD (Geology) Unrestricted 2023-02-14T13:15:12Z 2023-02-14T13:15:12Z 2023-04 2023 Thesis * A2023 https://repository.up.ac.za/handle/2263/89502 DOI:https://doi.org/10.25403/UPresearchdata.22093265 https://doi.org/10.25403/UPresearchdata.22093265 en © 2022 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | Seismicity Seismotectonics Geophysics KwaZulu-Natal Seismic Hazard UCTD Understanding the seismicity and tectonic patterns along the east coast of South Africa using geophysical and geospatial techniques |
| title | Understanding the seismicity and tectonic patterns along the east coast of South Africa using geophysical and geospatial techniques |
| title_full | Understanding the seismicity and tectonic patterns along the east coast of South Africa using geophysical and geospatial techniques |
| title_fullStr | Understanding the seismicity and tectonic patterns along the east coast of South Africa using geophysical and geospatial techniques |
| title_full_unstemmed | Understanding the seismicity and tectonic patterns along the east coast of South Africa using geophysical and geospatial techniques |
| title_short | Understanding the seismicity and tectonic patterns along the east coast of South Africa using geophysical and geospatial techniques |
| title_sort | understanding the seismicity and tectonic patterns along the east coast of south africa using geophysical and geospatial techniques |
| topic | Seismicity Seismotectonics Geophysics KwaZulu-Natal Seismic Hazard UCTD |
| url | https://repository.up.ac.za/handle/2263/89502 https://doi.org/10.25403/UPresearchdata.22093265 |