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South Africa
Product type
Model
Now
DESCRIPTION
South Africa is part of GEM's Global Earthquake Hazard and Risk Maps released to the public in December 2018. As part of the mosaic, the seismic hazard, exposure and vulnerability models employed in the calculations were either provided by national institutions, or developed within the scope of regional programs, bilateral collaborations, or by GEM. Click View for details.
Commercial
GEM’s South Africa earthquake risk model was generated using the hazard model for South Africa developed by the South Africa Council for Geoscience as the national hazard model, and for input to South Africa building design regulations. The vulnerability and exposure models and data were developed by GEM and cover the residential, commercial and industrial building stock. The risk model may be used to assess potential financial losses to commercial, industrial and residential buildings due to earthquake ground shaking.
Maintained by
GEM
Product type
Model
Availability
Now
Product restrictions
Restrictions will be based on the specific procurement agreement. Currently, the Oasis and Touchstone models are only available through 3rd parties.
License type
Commercial
Hazard
The seismic hazard model for South Africa (ZAF) was developed by scientists from the Council for Geoscience, South Africa and the Indian Institute of Technology, Jammu, India. The model is described by Midzi et al. (2019). The seismic source model was developed using a newly updated catalogue and consists of zones of distributed seismicity, while the ground motion logic tree consists of two existing ground motion prediction equations (GMPEs) derived for active shallow crust. The model was originally created for the OpenQuake (OQ) engine.
Maintained by
GeoScience Council
Product type
Model
Availability
Now
Product restrictions
Open By Attribution, Share-Alike and Commercial use provided the by-products are shared under the same conditions as the original license
License type
CC BY-SA
Exposure
Exposure data for Admin level 1 for population, commercial, industrial and residential buildings
Maintained by
GEM
Product type
Model
Availability
Now
Product restrictions
Open By Attribution, Share-Alike and Commercial use provided the by-products are shared under the same conditions as the original license
License type
CC BY-SA
The current model for South Africa does not have specific documentation. For some information about the hazard, vulnerability and risk assessment methods used for South Africa, readers are referred to the following publications:
Vulnerability modelling: Martins L, Silva V (2020). Development of a Fragility and Vulnerability Model for Global Seismic Risk Assessment. Bulletin of Earthquake Engineering. https://link.springer.com/article/10.1007/s10518-020-00885-1
Loss assessment: Silva V, Amo-Oduro D, Calderon A, Costa C, Dabbeek J, Despotaki V, Martins L, Pagani M, Rao A, Simionato M, Viganò D, Yepes-Estrada C, Acevedo A, Crowley H, Horspool N, Jaiswal K, Journeay M, Pittore M (2019). Development of a Global Seismic Risk Model. Earthquake Spectra, doi.org/10.1177/8755293019899953. https://journals.sagepub.com/doi/abs/10.1177/8755293019899953
Africa Earthquake Risk Model: https://www.globalquakemodel.org/africa-risk-model
Vulnerability
Vulnerability curves for all building classes
Maintained by
GEM
Product type
Model
Availability
Now
Product restrictions
Open By Attribution, Share-Alike and Commercial use provided the by-products are shared under the same conditions as the original license
License type
CC BY-SA
The current model for South Africa does not have specific documentation. For some information about the hazard, vulnerability and risk assessment methods used for South Africa, readers are referred to the following publications:
Vulnerability modelling: Martins L, Silva V (2020). Development of a Fragility and Vulnerability Model for Global Seismic Risk Assessment. Bulletin of Earthquake Engineering. https://link.springer.com/article/10.1007/s10518-020-00885-1
Loss assessment: Silva V, Amo-Oduro D, Calderon A, Costa C, Dabbeek J, Despotaki V, Martins L, Pagani M, Rao A, Simionato M, Viganò D, Yepes-Estrada C, Acevedo A, Crowley H, Horspool N, Jaiswal K, Journeay M, Pittore M (2019). Development of a Global Seismic Risk Model. Earthquake Spectra, doi.org/10.1177/8755293019899953. https://journals.sagepub.com/doi/abs/10.1177/8755293019899953
Africa Earthquake Risk Model: https://www.globalquakemodel.org/africa-risk-model
Country Profiles
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Maintained by
GEM
Licence type
CC BY-SA
Availability
Now
Product restrictions
Open By Attribution, Share-Alike and Commercial use provided the by-products are shared under the same conditions as the original license
GEM License Types
AGPL – GNU Affero General Public License, used mostly for software
CC BY – Creative Commons, By-Attribution
CC BY-SA – Creative Commons, By-Attribution, Share-Alike
CC BY-NC-SA – Creative Commons, By Attribution, Non-Commercial, Share-Alike
NDA – Non-Disclosure Agreement (By request for public-good, non-commercial use.)
Other/Commercial – If a product is not available under a license that suits your needs, such as for commercial application, please contact us to discuss your use case and other partnership/licensing options and fees.
More details on GEM’s licensing terms here.
Apologies for the inconvenience, the online NDA application is temporarily unavailable due to ongoing revisions.Please send your request to product@globalquakemodel.org.
Thank you.