THE ROLE OF TSUNAMI RESONANCE ON THE BALANCE OF MECHANICAL ENERGY AND ITS IMPLICATIONS FOR FRAGILITY ANALYSES

Tsunamis are rare events that can cause widespread damage and devastation even at remote locations far removed from the source location. Among the reasons for this damage potential are their minimal energy loss during their propagation, as well as being prone to energy trapping by mesoscale features such as continental shelves and shallow water bays, which may promote standing and edge wave activity. This may lead to an enhanced tsunami response in certain locations, which can exacerbate the hazard compared to surrounding locations. This has prompted us to attempt to understand to which extent, resonance can drive subcritical tsunami flows. To this end, we carried out high-resolution modeling of tsunami inundation at three different locations along the coast of Chile. The aforementioned Coquimbo, the large metropolitan area of Valparaíso and Viña del Mar, and the main port of San Antonio.