Abstract. Chile is highly exposed to tsunami hazard from large
earthquakes often occurring along the Peru–Chile trench, like the
16 September 2015 event. However, only recently has tsunami hazard been
considered in the land-use policies of the Chilean coast. These new
regulations must enforce the identification of the most vulnerable sectors of
the Chilean coastal cities. This paper analyses and validates the two latest
versions of the Papathoma Tsunami Vulnerability Assessment (PTVA) model in
the 2015 tsunami reconstructed scenario in the cities of La Serena and
Coquimbo. Both models result in a similar number of very high and high
relative vulnerability index (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 compared to the damages caused by
the tsunami, the PTVA-3 shows a more similar distribution to the actual
damages than that obtained by the PTVA-4 model, which shows a more concentrated
distribution of the RVI scores. These results suggest this version of the
model should be used in Chilean coastal cities in future land-use or
mitigation planning.
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
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