Seismic risk analysis in the Ullum-Zonda and Tulum valleys, San Juan Province (Argentina)

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Romina Antonela Páez

Abstract

The aim of this paper is to analyze seismic risk in the Ullum-Zonda and Tulum Valleys, located in the province of San Juan. It characterizes the hazard, vulnerability, and exposure of the population, while also analyzing and identifying capacities and resources to prevent and reduce seismic risk exposure. The level of risk for residents is thus determined. A qualitative methodological strategy was implemented, applying documentary source analysis techniques. The Pressure and Release (PAR) model was used to interpret and analyze vulnerability; current INPRES seismic hazard zoning was considered for risk estimation, and the Unmet Basic Needs (UBN) index was applied to assess vulnerability level of the department of the province (2010). Critical risk areas were identified. Findings show that seismic risk is not homogeneous across the whole area studied, with some zones displaying higher population exposure due to vulnerabilities—especially physical, economic, social, and cultural—in the face of seismic threats. The structural measures and the lack of non-structural ones are highlighted.

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How to Cite
Páez, R. A. (2025). Seismic risk analysis in the Ullum-Zonda and Tulum valleys, San Juan Province (Argentina). SENDEROS, (6), 9–24. Retrieved from https://revistas.unf.edu.ar/index.php/senderos/article/view/81
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Artículos