Tsunamis cause significant loss of life and damage to properties, ecosystems and marine structures and facilities. Tsunami modelling results are used for deriving robust design conditions for coastal and marine structures and facilities. The results are also used for emergency planning and decision-making to estimate the potential loss of life, damage to properties and marine facilities and to develop rescue and mitigation measures and plan clean-up operations. Royal HaskoningDHV (RHDHV) has set up a regional tidal hydrodynamic model covering the Northern Arabian Sea to provide data to address the above issues. The 1945 earthquake in the Makran Subduction Zone generated a tsunami along the coastlines of Iran and Pakistan killing as many as 4,000 people. Furthermore, the tsunami caused catastrophic damage to properties and other coastal facilities. The tsunami modelling in the present study was carried out for this 1945 event. The MIKE21 Flow Model FM of DHI was used to simulate this tsunami event and sample results from the modelling are presented in this paper for illustration purposes. Structural design considerations and tsunami risk reduction measures are also discussed. The model could be used to simulate any tsunami generated within the Arabian Sea. The methodology described in this paper for modelling the 1945 tsunami in the Makran Subduction Zone could also be applied to simulate this type of events at other sites around the world.

海啸会造成重大生命损失，并损害财产，生态系统以及海洋结构和设施。海啸建模结果可用于得出沿海和海洋结构与设施的稳健设计条件。结果还用于应急计划和决策，以估计潜在的生命损失，财产和海洋设施的破坏，并制定救援和缓解措施并计划清理行动。皇家HaskoningDHV（RHDHV）建立了覆盖北部阿拉伯海的区域潮汐水动力模型，以提供解决上述问题的数据。1945年，马克兰俯冲带地震在伊朗和巴基斯坦的海岸线上引发了海啸，造成多达4,000人丧生。此外，海啸对财产和其他沿海设施造成了灾难性破坏。本研究中的海啸建模是针对1945年事件进行的。DHI的MIKE21流动模型FM用于模拟此海啸事件，本文中出于示例目的提供了来自模型的样本结果。还讨论了结构设计注意事项和减少海啸风险的措施。该模型可用于模拟阿拉伯海产生的任何海啸。本文中描述的用于模拟Makran俯冲带1945年海啸的方法也可以用于模拟世界其他地方的此类事件。还讨论了结构设计方面的考虑因素和减少海啸风险的措施。该模型可用于模拟阿拉伯海内产生的任何海啸。本文中描述的用于模拟Makran俯冲带1945年海啸的方法也可以用于模拟世界其他地方的此类事件。还讨论了结构设计方面的考虑因素和减少海啸风险的措施。该模型可用于模拟阿拉伯海产生的任何海啸。本文中描述的用于模拟Makran俯冲带1945年海啸的方法也可以用于模拟世界其他地方的此类事件。