Complex disasters may occur as a result of a natural disaster combined with an industrial or a technological disaster. These are also called “natural-hazard triggered technological (natech) disasters.” Currently, there is increasing awareness of the hazards of these natech disasters. Natural disasters could trigger a technological disaster including oil spills and the release of hazardous and flammable materials and toxic chemicals, causing cascading events. The impact of the damage on public health and safety could be catastrophic, as it may result in massive loss of life, environmental destruction, and asset and property loss. Moreover, it could cause business disruptions and affect a country’s reputation. This paper describes a case study on the application of disaster risk reduction and management for natech disasters in Cilegon, Indonesia. We introduce the analysis of risk assessment conducted in Cilegon, the preparedness of the Cilegon City government, a contingency plan that has been developed, and the state of disaster preparedness in industrial zones. Natural and technological disaster risks as well as several emergency preparedness efforts are discussed and multiple stakeholders are identified. The paper serves as a foundation for future research to address natech disasters.

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