Journal cover Journal topic
Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
https://doi.org/10.5194/nhess-2018-25
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Research article
07 Feb 2018
Review status
This discussion paper is a preprint. A revision of the manuscript is under review for the journal Natural Hazards and Earth System Sciences (NHESS).
Assessing the tsunami building vulnerability PTVA-3 and PTVA-4 models after the 16S 2015 event in the cities of Coquimbo – La Serena (Chile)
Eduardo Fritis, Tatiana Izquierdo, and Manuel Abad Departmento de Geología, Universidad de Atacama, Avenida Copayapu 485, Copiapó, Chile
Abstract. Chile is highly exposed to tsunamigenic events, as the one occurred in September 16, 2015; however, it has not been until recent years that land-use policies have begun to be considered. These new regulations must identify the most vulnerable sectors of the Chilean coastal cities. This paper analyses and validates the use of the two latest versions of the PTVA model in the 2015 tsunami scenario in the cities of La Serena and Coquimbo and their potential use in other Chilean cities in future land-use or mitigation measures planning. Both models result in a similar number of very-high and high RVI scores. However, the less vulnerable categories do not show a similar trend and the PTVA-4 model obtains a larger number of minor and average RVI scores. When compare with the damages caused by the tsunami, the PTVA-3 show a more similar distribution to the actual damages than that obtained by the PTVA-4 model that shows a more concentrated distribution of the RVI scores.
Citation: Fritis, E., Izquierdo, T., and Abad, M.: Assessing the tsunami building vulnerability PTVA-3 and PTVA-4 models after the 16S 2015 event in the cities of Coquimbo – La Serena (Chile), Nat. Hazards Earth Syst. Sci. Discuss., https://doi.org/10.5194/nhess-2018-25, in review, 2018.
Eduardo Fritis et al.
Eduardo Fritis et al.
Eduardo Fritis et al.

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Short summary
We have evaluated two methodologies widely accepted in the tsunami building vulnerability assessment taking advantage of the tsunami occurred in 2015 in Central-Northern Chile with the aim of validating their potential use in other Chilean cities. Our results show these models are good approach to the expected damages distribution and can therefore be a helpful tool for the assessment of futures mitigation measures in the land-use policies to come.
We have evaluated two methodologies widely accepted in the tsunami building vulnerability...
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