Tsunami Modeling in the South American Subduction Zone Inferred from Seismic Coupling and Historical Seismicity

Medina, Miguel; Riquelme, S.; Fuentes, Mauricio; Campos, Jaime

doi:10.1007/s00024-021-02808-w

Cited by 5 publications

(3 citation statements)

References 78 publications

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“…It has an area of 2242 km 2 , and 191,468 inhabitants [45]. Iquique is a city located in the north of Chile, where there is a seismic gap that could generate an earthquake of M w 8.9 [46] and subsequent tsunami with waves of up to 40 meters [47]. Consequently, intensive preparation in the pre-disaster pre-positioning phase for facility location is required to reduce fatalities and better recovery in case of disasters like earthquakes and tsunamis [48].…”

Section: Case Studymentioning

confidence: 99%

Optimization of Humanitarian Aid Distribution in Case of an Earthquake and Tsunami in the City of Iquique, Chile

2022

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In this paper, we introduce, model, and solve a clustered resource allocation and routing problem for humanitarian aid distribution in the event of an earthquake and subsequent tsunami. First, for the preparedness stage, we build a set of clusters to identify, classify, sort, focus, and prioritize the aid distribution. The clusters are built with k-means method and a modified version of the capacitated p-median model. Each cluster has a set of beneficiaries and candidate delivery aid points. Second, vehicle routes are strategically determined to visit the clusters for the response stage. A mixed integer linear programming model is presented to determine efficient vehicle routes, minimizing the aid distribution times. A vulnerability index is added to our model to prioritize aid distribution. A case study is solved for the city of Iquique, Chile.

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Section: Case Studymentioning

confidence: 99%

Optimization of Humanitarian Aid Distribution in Case of an Earthquake and Tsunami in the City of Iquique, Chile

2022

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“…Chile is one of the most tsunami-prone countries globally, with more than 100 tsunamis recorded since the 16 th century, including 35 destructive events (Lagos and Gutiérrez, 2005) and recent disasters in 2010, 2014 and 2015. Moreover, researchers including Drápela et al (2021), Klein et al (2017), andMedina et al (2021) have underlined the existence of extensive submarine areas in seismic locking along the central and northern coasts of Chile, capable of triggering large destructive tsunamis if major rupture earthquakes occur. Among the Chilean coastal cities, we selected seven case studies, distributed from north to south: Arica, Iquique, Coquimbo, La Serena, Viña del Mar, Valparaíso, and Talcahuano (see Fig.…”

Section: Case Studiesmentioning

confidence: 99%

Modelling geographical and built environment’s attributes as predictors of human vulnerability during tsunami evacuations: a multi-case study and paths to improvement

León

Gubler

Ogueda

2021

Preprint

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Abstract. Evacuation is the most important and effective method to save human lives during a tsunami. In this respect, challenges exist in developing quantitative analyses of the relationships between the evacuation potential and the built environment and geographical attributes of coastal locations. This paper proposes a computer-based modelling approach (including inundation, evacuation, and built environment metrics), followed by multivariate regressive analysis, to estimate how those attributes might influence the expected tsunami death ratios of seven Chilean coastal cities. We obtained, for the examined variables, their average values to different thresholds of the death ratio. Also, our statistical analysis allowed us to compare the relative importance of each metric, showing that the maximum flood, the straightness of the street network, the total route length, and the travel time can have a significant impact on the expected death ratios. Moreover, we suggest that these results could lead to spatial planning guidelines for developing new urban areas into exposed territories (if this expansion cannot be restricted or discouraged) or retrofitting existing ones, with the final aim of enhancing evacuation and therefore increasing resilience.

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“…To determine what zones are prone to release significant seismic moment, usually, the coupling index is employed 15 , 16 . By combining those tools, earthquake scenarios can be established 17 – 19 .…”

Section: Introductionmentioning

confidence: 99%

Stochastic tsunami modeling induced by kinematic complex sources

Fuentes

Riquelme

2022

Sci Rep

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In this study, local tsunami hazard due to seismic sources is evaluated in a stochastic framework. Several assumptions such as static passive generation, constant rake angle and source centroid (among others) are relaxed. Spatial uncertainties are modeled in a large set of scenarios. The proposed methodology is easy to implement and can be combined with other types of sources or hazards. Application in the Kuril-Kamchatkah trench shows a straightforward use of our methodology, producing simple hazard maps, which can be replicated in any region of the world.

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Tsunami Modeling in the South American Subduction Zone Inferred from Seismic Coupling and Historical Seismicity

Cited by 5 publications

References 78 publications

Optimization of Humanitarian Aid Distribution in Case of an Earthquake and Tsunami in the City of Iquique, Chile

Optimization of Humanitarian Aid Distribution in Case of an Earthquake and Tsunami in the City of Iquique, Chile

Modelling geographical and built environment’s attributes as predictors of human vulnerability during tsunami evacuations: a multi-case study and paths to improvement

Stochastic tsunami modeling induced by kinematic complex sources

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