Tsunami are known to be one of the most powerful and destructive natural hazards to impact low-lying coastal communities. The Republic of Fiji is situated in a complex tectonic setting at the boundary of two active plates in the South-west Pacific; the Indo-Australian and Pacific Plate, making the country highly vulnerable to earthquakes and tsunami. Local and regional source tsunami is a concern for emergency management. This is due to the limited warning time in receiving a tsunami alert and issuing warnings to the public. Fiji's greatest local and regional tsunami hazard risk is from the Tonga-Kermadec trench and South New Hebrides faults. This paper presents the first probabilistic tsunami hazard assessment of a credible 1 in 10,000 year event for Fiji's two largest populated islands, Viti Levu and Vanua Levu. Subsequent to the probabilistic tsunami hazard assessment, this paper presents the results of a tsunami exposure assessment of the population, assets and critical infrastructure vulnerable to tsunami inundation from Tonga-Kermadec and South New Hebrides tsunami sources. This study applies a mix methodology approach, using a combination of hydrodynamic models, probabilistic approaches, Geographic Information Systems and quantitative analysis to determine maximum tsunami heights and exposure to tsunami hazard. Results of the exposure assessment indicates provinces in Vit Levu and Vanua Levu are likely to be susceptible to various tsunami inundation heights, concluding that people and assets in provinces such as Macuata and Tailevuare more vulnerable to tsunami. The results of this study provides valuable information for the Government of Fiji specifically the National Disaster Management Office, Mineral Resources Department, the National Tsunami Warning Centre and at risk communities. This will increase tsunami risk knowledge and will encourage decisive warning times and allow emergency management to make informative decision-making in regards to emergency preparedness and response planning.

众所周知，海啸是影响低洼沿海社区的最强大和最具破坏性的自然灾害之一。斐济共和国位于西南太平洋两个活动板块交界处的复杂构造环境中；印度-澳大利亚和太平洋板块，使该国极易受到地震和海啸的影响。地方和区域来源的海啸是应急管理的一个关注点。这是因为接收海啸警报和向公众发出警报的警报时间有限。斐济最大的地方和区域海啸灾害风险来自汤加-克马德克海沟和新赫布里底群岛南部断层。本文介绍了斐济最大的两个人口岛屿维提岛和瓦努阿岛发生的可信的万分之一事件的首次概率海啸灾害评估。在进行概率海啸灾害评估之后，本文介绍了对汤加-克马德克和新赫布里底群岛南部海啸源易受海啸淹没的人口、资产和关键基础设施进行海啸暴露评估的结果。本研究采用混合方法，结合使用流体动力学模型、概率方法、地理信息系统和定量分析来确定最大海啸高度和海啸灾害风险。暴露评估结果表明，Vit Levu 和 Vanua Levu 省可能容易受到各种海啸淹没高度的影响，得出结论，Macuata 和 Tailevuare 等省的人员和资产更容易受到海啸的影响。这项研究的结果为斐济政府特别是国家灾害管理办公室、矿产资源部、国家海啸预警中心和风险社区提供了宝贵的信息。这将增加海啸风险知识，鼓励决定性的预警时间，并使应急管理人员能够在应急准备和响应计划方面做出信息丰富的决策。