ABSTRACT Highly destructive tsunamis occurred near the Pacific coast of Colombia in 1906 and 1979. Recent studies have established asperities within the subduction zone in this area, which can cause megathrust earthquakes triggering highly destructive tsunamis. In this study we assess the tsunami hazard in the main populated areas of Colombia Pacific coast by calculating the inundation depth and the maximum tsunami height from major scenario. A deterministic method is applied using slip deficit models and broadband slip models as tsunami sources. Result suggest that, for the worse-case scenario, the maximum deformation of the seafloor is 6.0 m within the Esmaraldas segment ; the maximum height of the tsunami is 4.66 m, 4.34 m and 0.53 m around. Tumaco Island, Morro Island, and Cascajal Island (Buenaventura Bay), respectively. Two to five meters inundation depth were calculated in over 11% and 10% of the total areas of the islands of Tumaco and Morro, respectively. Based on these result, tsunami hazard maps were alaborated and will serve to create tsunami mitigation plans in these areas.

中文翻译：

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哥伦比亚中部和南部太平洋沿岸的海啸危害评估

摘要 1906 年和 1979 年在哥伦比亚太平洋沿岸附近发生了极具破坏性的海啸。最近的研究已经在该地区的俯冲带内建立了凹凸不平的环境，这可能会导致引发高度破坏性海啸的特大地震。在这项研究中，我们通过计算主要情景的淹没深度和最大海啸高度来评估哥伦比亚太平洋沿岸主要人口稠密地区的海啸灾害。使用滑动赤字模型和宽带滑动模型作为海啸源来应用确定性方法。结果表明，在最坏的情况下，Esmaraldas 段内的海底最大变形为 6.0 m；海啸的最大高度为4.66 m、4.34 m和0.53 m左右。图马科岛、莫罗岛和卡斯卡哈尔岛（布埃纳文图拉湾）。根据计算，图马科岛和莫罗岛总面积的 11% 和 10% 以上的淹没深度分别为 2 到 5 米。根据这些结果，绘制了海啸灾害地图，并将用于制定这些地区的海啸减灾计划。