17/02/2000 Denmark Ship sunk due to reaction of cargo with waterEvent ID520Quality4ApplicationNon-road vehiclesComponent involvedshipHydrogen supply chain stageUnintended hydrogen production - chemical reactionNature of the consequencesexplosionClassification of the physical effectsHydrogen Release and IgnitionDate entry in HIAD01/01/2020
23/02/2004 Israel Explosion caused by hydrogen tank piercingEvent ID519Quality2ApplicationUnknownComponent involvedCGH2 cylinder(s)Hydrogen supply chain stagehydrogen stationary storageNature of the consequencesexplosionClassification of the physical effectsHydrogen Release and IgnitionDate entry in HIAD01/01/2020
01/01/1973 United States Fire on a desulphurisation unit of a refineryEvent ID518Quality2ApplicationPetrochemical industryComponent involvedflange (gasket)Hydrogen supply chain stageHydrogen as process gasNature of the consequencesfireClassification of the physical effectsHydrogen Release and IgnitionDate entry in HIAD28/01/2026
01/01/1973 United States Fire on a hydrogen line of a naphtha reformerEvent ID517Quality2ApplicationPetrochemical industryComponent involvedpipe (weld)Hydrogen supply chain stagehydrogen on-site supplyNature of the consequencesfireClassification of the physical effectsHydrogen Release and IgnitionDate entry in HIAD28/01/2026
01/01/1973 United States Off-gas explosion at a nuclear power plantEvent ID516Quality2ApplicationPower plantComponent involvedoff-gas systemHydrogen supply chain stageUnintended hydrogen production - radiolysisNature of the consequencesexplosionClassification of the physical effectsHydrogen Release and IgnitionDate entry in HIAD28/01/2026
03/02/1996 United States Explosion at the hydrogen unit of a refineryEvent ID515Quality4ApplicationPetrochemical industryComponent involvedpipe (generic)Hydrogen supply chain stageHydrogen productionNature of the consequencesexplosionClassification of the physical effectsHydrogen Release and IgnitionDate entry in HIAD01/01/2020
09/08/1999 United Kingdom Toxic and flammable gas release from steels production plantEvent ID514Quality5ApplicationSteel and metals industryComponent involvedvalve (generic)Hydrogen supply chain stageHydrogen as process gasNature of the consequencesrelease, no ignitionClassification of the physical effectsUnignited Hydrogen ReleaseDate entry in HIAD01/01/2020
01/01/1973 United States Off-gas explosion at a nuclear power plantEvent ID513Quality2ApplicationPower plantComponent involvedoff-gas systemHydrogen supply chain stageUnintended hydrogen production - radiolysisNature of the consequencesexplosionClassification of the physical effectsHydrogen Release and IgnitionDate entry in HIAD28/01/2026
01/01/1973 United States Off-gas explosion at a nuclear power plantEvent ID512Quality2ApplicationPower plantComponent involvedoff-gas systemHydrogen supply chain stageUnintended hydrogen production - radiolysisNature of the consequencesexplosionClassification of the physical effectsHydrogen Release and IgnitionDate entry in HIAD28/01/2026
07/08/2002 United States Explosion of pressurised tank during oxygen productionEvent ID511Quality2ApplicationChemical industryComponent involvedchemical storage tankHydrogen supply chain stagehydrogen as by-productNature of the consequencesexplosionClassification of the physical effectsHydrogen Release and IgnitionDate entry in HIAD01/01/2020