Multi-vulnerability analysis for seismic risk management in historic city centres: an application to the historic city centre of La Serena, Chile

Pilar Baquedano-Juliá (), Tiago Miguel Ferreira, Camilo Arriagada-Luco, Cristián Sandoval, Nuria Chiara Palazzi and Daniel V. Oliveira
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Pilar Baquedano-Juliá: University of Minho
Tiago Miguel Ferreira: University of the West of England (UWE Bristol)
Camilo Arriagada-Luco: Universidad de Chile
Cristián Sandoval: Pontificia Universidad Católica de Chile
Nuria Chiara Palazzi: Pontificia Universidad Católica de Chile
Daniel V. Oliveira: University of Minho

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2024, vol. 120, issue 10, No 6, 9223-9266

Abstract: Abstract A comprehensive understanding of the elements at risk, through the identification of the main hazards, level of exposure and different dimensions of the vulnerability of the communities, is an essential step toward the definition and adoption of more effective risk reduction strategies. Historic urban centres have received special attention in the assessment of damage and physical vulnerability to earthquakes, but it is well known that vulnerability also depends on the social and demographic characteristics of communities. This paper discusses the application of a holistic approach aimed at assessing the seismic vulnerability of historic urban centres by considering their physical and social dimensions. Two index-based methodologies are presented, and the data are analyzed using the CENSUS block as the unit of study, which is scarcely present in the literature. The results of both indices are crossed through a matrix, which allows the classification of the blocks in five levels of priority and are mapped using a Geographic Information System tool. The Historic city centre of La Serena, one of the oldest in Chile, was selected as a case study. This historic city centre still preserves historic buildings of raw earth of diverse architectural typologies widely distributed throughout the country, which makes it relevant, not only by itself but as a model that can be replicated and extrapolated to other historic centres of similar constructive characteristics.

Keywords: Historic city centres; Masonry buildings; Seismic vulnerability; Social vulnerability; Vulnerability index method (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s11069-023-06008-8

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