Numerical Modeling of the 1960 Lambayeque Tsunami (Mw 7.6)

• Autores: Moreno, Nick, Jimenez, Cesar
• Formato: artículo
• Fecha de Publicación: 2018
• Institución: Universidad Nacional Mayor de San Marcos
• Repositorio: Revistas - Universidad Nacional Mayor de San Marcos
• Lenguaje: español
• OAI Identifier: oai:ojs.csi.unmsm:article/20235
• Enlace del recurso: https://revistasinvestigacion.unmsm.edu.pe/index.php/fisica/article/view/20235
• Nivel de acceso: acceso abierto
• Materia: Numerical modeling; earthquake; tsunami; Modelado numérico; terremoto; maremoto

In this article the dynamics and numerical simulation of the Lambayeque tsunami, Peru, occurred on November 20, 1960 (Mw = 7.6) in its three processes: generation, propagation and inundation, are studied. The numerical model TUNAMI was used to simulate the processes of propagation and ooding. The bathymetry and topography information obtained from the GEBCO model with resolution of 30 seconds of arc (approximately 927 m) is required as input data. The results of the model are the parameters such as: arrival times of the rst tsunami wave, maximum height wave and inundation areas for each zone to be modeled, these results have been corroborated with information provided by the population that endured the eects of the earthquake and subsequent tsunami and that is detailed in this article. The results of the arrival times for the Pimentel, Santa Rosa and Puerto Eten areas were 30, 35 and 40 minutes respectively. The maximum horizontal inundation in Pimentel was of 1.86 km of distance and the height of the wave arrived approximately at 6 m.