| Summary: | Numerous risk factors exist in the Nordic Seas. Among these are frost, darkness, local heavy storms, remoteness and storm-tossed waters that are unusual in other regions of the world. Such extreme operating conditions, typical of the Nordic regions, can be the cause of accidents at offshore platforms or vessels. The focus of this study is the analysis of infrastructure damage and failure mechanisms triggered by natural hazards (so-called Natech events) which occurred in the Nordic Seas. Using the World Offshore Accident Database (WOAD), this study provides valuable insights into accident causes and mechanisms of occurrence, hence contributing to better prevention and preparedness in the future. Both qualitative and quantitative accident data was retrieved to draw the most complete picture of the natural hazard characteristics, infrastructure damage modes, and the consequences of the accidents. The study highlighted problems related to station keeping systems and transport operations. Through the analysis of significant case studies, issues related to a lack of safety measures, insufficient design requirements, inadequate operations planning, component reliability, and lack of safety culture were discussed. Better attention to these issues is needed, including possible improvements of design criteria. JRC.E.2 - Technology Innovation in Security
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