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URI permanente para esta colecciónhttp://10.0.96.45:4000/handle/11056/20508
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Ítem Numerical Modeling for Costa Rica of Tsunamis Originated at Tonga‐ Kermadec and Colombia‐Ecuador Subduction Zones(Multidisciplinary Digital Publishing Institute (MDPI) (Suiza), 2025) Chacón-Barrantes, Silvia; Rivera-Cerdas, Fabio; Espinoza-Hernández, Kristel; Murillo-Gutiérrez, AnthonyAbstract. Costa Rica has experienced 37 tsunamis at both its Pacific and Caribbean coasts, with none to moderated impact. However, the coastal population has increased exponentially in the past decades, which might lead to higher impact from future tsunamis. In 2018 and 2019, IOC/UNESCO organized Experts Meetings of Tsunami Sources, Hazards, Risks and Uncertainties associated with the Tonga-Kermadec and Colombia-Ecuador subduction zones, where experts defined worst-case scenarios. Here we modeled the propagation of those tsunami scenarios to Costa Rica and their inundation for selected sites. We found that the Tonga-Kermadec scenarios provoked larger inundation than previous modeled sources from that region. However, the large travel time for those scenarios, about 14 hours, would allow for a timely evacuation. In the case of the Colombia-Ecuador scenarios, they provoked smaller inundation than previously modeled sources from that region, a good outcome as their arrival time is between 75 and 150 minutes. These new results required the update of tsunami evacuation maps and/or plans for many communities but provided more favorable conditions for tsunami preparedness. Yet, the short arrival times of the Colombia-Ecuador scenarios still require a prompt response from the population and authorities. For this, additional to updated tsunami evacuation maps and plans, it is recommended to have tsunami exercises in a regular basis.