Social and seismic structural vulnerability in Zihuatanejo, Guerrero, Mexico

David A. Novelo-Casanova () and Gerardo Suárez
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David A. Novelo-Casanova: Universidad Nacional Autónoma de México, Col. Ciudad Universitaria, Alcaldía Coyoacán
Gerardo Suárez: Universidad Nacional Autónoma de México, Col. Ciudad Universitaria, Alcaldía Coyoacán

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2024, vol. 120, issue 5, No 38, 4925-4939

Abstract: Abstract The spatial distribution of the social and seismic structural vulnerabilities in Zihuatanejo (ZIH), Guerrero, Mexico, was estimated. Social vulnerability was assessed considering twelve indicators, including parameters such as access to health services, education, housing, employment, and unfavorable family conditions. Seismic structural vulnerability was evaluated characterizing the structural features of local houses, assessing the type and age of construction, and the quality of building materials. Surveyed households were randomly selected from a statistically significant sample. Our findings indicate that in the western and eastern areas of ZIH the population has high and very high social vulnerability. The main factors that condition these levels of social vulnerability are low-income, female-headed families, and households with marginal access to information technology, such as internet and telephone. Although seismic ground amplification in ZIH is relatively low, the regions to the west and southwest of the city are zones where the impact of strong earthquakes to constructions may be greater than in other areas. In particular, the districts of Lázaro Cárdenas, Benito Juárez, Cuauhtémoc, Emiliano Zapata, Las Mesas, Buenos Aires, Lomas del Quebrachal, and Lomas del Riscal would be affected. In general, houses vulnerable to the impact of earthquakes are in regions where the population is socially more vulnerable. More than 50% of the population and 30% of the houses have high and very high level of social and structural vulnerability, respectively. Our results provide information to the local and federal authorities to strengthen their civil protection and mitigation plans.

Keywords: Social vulnerability; Structural vulnerability; Vulnerability assessment; Risk assessment; Zihuatanejo; Mexico (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s11069-023-06385-0

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