Review and characterization of the 2014 Orkney damage datasets for damage pattern mapping and fragility curve construction

The 2014 Orkney earthquake caused significant damage to unreinforced masonry buildings in the surrounding townships. After the earthquake, field surveys were conducted to assess the extent of damage in the affected areas. This study reviews data collected from the 2014 Orkney earthquake to investiga...

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Main Authors: Thando Nqasha, Mulemwa Akombelwa, Mayshree Singh, Andrzej Kijko
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-01-01
Series:Frontiers in Built Environment
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Online Access:https://www.frontiersin.org/articles/10.3389/fbuil.2024.1524618/full
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author Thando Nqasha
Mulemwa Akombelwa
Mayshree Singh
Andrzej Kijko
author_facet Thando Nqasha
Mulemwa Akombelwa
Mayshree Singh
Andrzej Kijko
author_sort Thando Nqasha
collection DOAJ
description The 2014 Orkney earthquake caused significant damage to unreinforced masonry buildings in the surrounding townships. After the earthquake, field surveys were conducted to assess the extent of damage in the affected areas. This study reviews data collected from the 2014 Orkney earthquake to investigate damage patterns, evaluate building safety for occupancy, and support fragility curve construction. Damage was quantified based on the European Macroseismic Scale (EMS-98) to assess building safety and conduct regression analysis. The results indicate that the collected data is suitable for investigating damage patterns and determining building safety for occupancy. However, it is not suitable for constructing fragility curves. Empirical fragility curves are typically developed using logistic regression, but this study found the data unsuitable for regression analysis due to sampling errors and limited data quantity. This study recommends the use of first-order approximation methods to supplement the dataset, reducing sampling errors and increasing data quantity.
format Article
id doaj-art-047d0a3312094d70a03e019c36e2dfa3
institution Kabale University
issn 2297-3362
language English
publishDate 2025-01-01
publisher Frontiers Media S.A.
record_format Article
series Frontiers in Built Environment
spelling doaj-art-047d0a3312094d70a03e019c36e2dfa32025-01-07T06:40:34ZengFrontiers Media S.A.Frontiers in Built Environment2297-33622025-01-011010.3389/fbuil.2024.15246181524618Review and characterization of the 2014 Orkney damage datasets for damage pattern mapping and fragility curve constructionThando Nqasha0Mulemwa Akombelwa1Mayshree Singh2Andrzej Kijko3School of Civil Engineering, Surveying and Construction, University of KwaZulu Natal, Durban, South AfricaSchool of Civil Engineering, Surveying and Construction, University of KwaZulu Natal, Durban, South AfricaSchool of Civil Engineering, Surveying and Construction, University of KwaZulu Natal, Durban, South AfricaNatural Hazard Centre, Pretoria University, Pretoria, South AfricaThe 2014 Orkney earthquake caused significant damage to unreinforced masonry buildings in the surrounding townships. After the earthquake, field surveys were conducted to assess the extent of damage in the affected areas. This study reviews data collected from the 2014 Orkney earthquake to investigate damage patterns, evaluate building safety for occupancy, and support fragility curve construction. Damage was quantified based on the European Macroseismic Scale (EMS-98) to assess building safety and conduct regression analysis. The results indicate that the collected data is suitable for investigating damage patterns and determining building safety for occupancy. However, it is not suitable for constructing fragility curves. Empirical fragility curves are typically developed using logistic regression, but this study found the data unsuitable for regression analysis due to sampling errors and limited data quantity. This study recommends the use of first-order approximation methods to supplement the dataset, reducing sampling errors and increasing data quantity.https://www.frontiersin.org/articles/10.3389/fbuil.2024.1524618/fullseismic vulnerability assessment2014 Orkney earthquakeearthquake damageunreinforced masonry buildingsfragility curvesSouth Africa
spellingShingle Thando Nqasha
Mulemwa Akombelwa
Mayshree Singh
Andrzej Kijko
Review and characterization of the 2014 Orkney damage datasets for damage pattern mapping and fragility curve construction
Frontiers in Built Environment
seismic vulnerability assessment
2014 Orkney earthquake
earthquake damage
unreinforced masonry buildings
fragility curves
South Africa
title Review and characterization of the 2014 Orkney damage datasets for damage pattern mapping and fragility curve construction
title_full Review and characterization of the 2014 Orkney damage datasets for damage pattern mapping and fragility curve construction
title_fullStr Review and characterization of the 2014 Orkney damage datasets for damage pattern mapping and fragility curve construction
title_full_unstemmed Review and characterization of the 2014 Orkney damage datasets for damage pattern mapping and fragility curve construction
title_short Review and characterization of the 2014 Orkney damage datasets for damage pattern mapping and fragility curve construction
title_sort review and characterization of the 2014 orkney damage datasets for damage pattern mapping and fragility curve construction
topic seismic vulnerability assessment
2014 Orkney earthquake
earthquake damage
unreinforced masonry buildings
fragility curves
South Africa
url https://www.frontiersin.org/articles/10.3389/fbuil.2024.1524618/full
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AT mulemwaakombelwa reviewandcharacterizationofthe2014orkneydamagedatasetsfordamagepatternmappingandfragilitycurveconstruction
AT mayshreesingh reviewandcharacterizationofthe2014orkneydamagedatasetsfordamagepatternmappingandfragilitycurveconstruction
AT andrzejkijko reviewandcharacterizationofthe2014orkneydamagedatasetsfordamagepatternmappingandfragilitycurveconstruction