The 16 September 2015 M_W8.3 Illapel Earthquake generated a tsunami that caused severe building and infrastructure damage in Coquimbo, Chile. Initial reports indicated numerous buildings, transport, energy, water and coastal protection structures sustained varying levels of damage in response to tsunami exposure. A digital ‘census style’ survey was carried out in Coquimbo to measure and record tsunami hazard characteristics and associated buildings and infrastructure network component damage. Flow depths measured from 655 watermarks ranged from 0.1 to 4.7 m, with a 1.47 m mean and 1.02 m standard deviation. Over 3000 damage samples were recorded for tsunami exposed buildings and infrastructure components. Damage levels for 545 buildings showed most sustained partial but repairable damage at tsunami flow depths up to 2 m. A further 2544 damage samples were collected for transport, energy, water infrastructure network components and coastal protection structures. We observed undamaged infrastructure components in high proportions and observed that complete component damage was often caused by secondary hazards (e.g. debris) or cascading impacts where seawall and stormwater culvert failures damaged co-located roads, pathways and utility poles. Future investigations of the hydrodynamic tsunami characteristics influencing infrastructure component fragility will support the analysis of physical damage to single components and cascading impacts across multiple infrastructure networks.

2015年9月16日M _W8.3伊拉佩尔地震在智利科金博造成海啸，严重破坏了建筑和基础设施。初步报告表明，许多建筑物，运输，能源，水和沿海保护结构因遭受海啸而遭受不同程度的破坏。在科金博进行了数字“人口普查风格”调查，以测量和记录海啸危害特征以及相关建筑物和基础设施网络组件的损坏。从655个水印测得的流量深度范围为0.1到4.7 m，平均值为1.47 m，标准偏差为1.02 m。记录了3000多个破坏海啸的建筑物和基础设施组件的损坏样本。545座建筑物的损坏程度在海啸流深达2 m时显示出最持续的部分但可修复的损坏。为运输，能源，水基础设施网络组成部分和沿海保护结构收集了另外2544个破坏样本。我们以高比例观察到未损坏的基础设施组件，并观察到组件的完全损坏通常是由次生危害（例如碎屑）或级联冲击造成的，其中海堤和雨水涵洞故障损坏了位于同一地点的道路，道路和电线杆。未来对影响基础设施组件脆弱性的水力海啸特征的研究将支持对单个组件的物理损坏和跨多个基础设施网络的级联影响的分析。我们以高比例观察到未损坏的基础设施组件，并观察到组件的完全损坏通常是由次生危害（例如碎屑）或级联冲击造成的，其中海堤和雨水涵洞故障损坏了位于同一地点的道路，道路和电线杆。未来对影响基础设施组件脆弱性的水力海啸特征的研究将支持对单个组件的物理损坏和跨多个基础设施网络的级联影响的分析。我们以高比例观察到未损坏的基础设施组件，并观察到组件的完全损坏通常是由次生危害（例如碎屑）或级联冲击造成的，其中海堤和雨水涵洞故障损坏了位于同一地点的道路，道路和电线杆。未来对影响基础设施组件脆弱性的水力海啸特征的研究将支持对单个组件的物理损坏和跨多个基础设施网络的级联影响的分析。