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Technological hazard

Technical or technological disasters are caused by events that can be intense and sudden, induced by human processes. They originate from technological or industrial conditions, dangerous procedures, infrastructure failures or specific human activities (UNGA, 2016).

Technical systems are complex, with many dependent subsystems. The failure of one element within this system can cascade throughout the chain, causing a series of failures leading to a disaster. Technical hazards are increasing due to the scope of technological expansion. They include industrial activity that includes dangerous conditions, processes, all transport systems (land, sea, air), defensive or offensive weapons systems and power plants.

By 2050, most of humanity will live downstream of large dams built in the 20th century.

A new set of emerging technological risks under the Sendai Framework includes Information and communications technology (ICT)-related hazards. The increasing dependence upon complex large-scale network architectures of information technologies also increases exposure to cybersecurity threats. These threats include computer viruses, worms, Trojan horses, malware, spoofing attacks, identity theft, the theft and illegal disclosure of data, the loss of data and contamination of data. They have the potential to disrupt essential infrastructure operations such as communication, health, banking, transportation, energy, education and many other services.

Risk factors

  • Ageing, abandoned or idle installations.
  • Insufficient institutional and legal capacities.
  • Natural hazards: storms, landslides, floods or earthquakes can cause industrial accidents.

Vulnerable areas

  • Residential communities around industrial establishments tend to be most at risk because of their proximity.

Risk reduction measures

  • Assess the risks before planning and building critical infrastructure.
  • Develop policies and practices for continuity management.
  • Integrate the risks into planning, foresee and reduce cascading effects.
  • Create a hazard map to identify people at risk and their vulnerability.
  • Draft national, regional and local response plans.
  • Put in place early warning/monitoring systems to inform response.
  • Ensure contingency and response plans are in place at a national and local level to evacuate people on time.
  • Assess new technologies.
  • Improve crisis communication before, during and after the event.
  • Organize training and exercises for complex scenarios involving multiple interdependent failures.
  • Educate and raise awareness on potential risks.

Latest Technical Disaster additions in the Knowledge Base

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Educational materials

This booklet tackles the way to handle disaster situations. It indicates the consequences of the different hazards and risks, how to protect ourselves in case of a disaster and how to give assistance to others.

Educational materials

This free supplement of TDC n° 841 (October 2002), presents various articles on: mountain risks in France, especially with a case study on avalanches; the Taller dam, in southern Corsica; the explosion risk under a tunnel; landslides in Féternes (Haute

Ministry for Ecological and Solidarity Transition
Educational materials

This free supplement of TDC n° 845 (December 2002) presents articles on: technological risks, particularly a case study on the fire which struck the Edouard Herriot haven in Lyon on 2 June 1987; the nuclear site of Gravelines in the Dunkerque industrial

Ministry for Ecological and Solidarity Transition
Educational materials

This free supplement of TDC n° 847 (January 2003) presents articles on: risk management in the city, particularly with a case study on the Lisbon earthquake of 1755; risk management, as carried out by mayors in their cities; the setting up of the sEsAM

Ministry for Ecological and Solidarity Transition
Educational materials

This free supplement of TDC n° 851 (March 2003) presents articles on: the risks existing in rural areas, in particular with a case study on forest fires in the Mediterranean area; the transportation of dangerous materials; the explosion of a grain

Ministry for Ecological and Solidarity Transition
Educational materials

This free supplement of TDC n° 855 (May 2003) presents articles on : major risks on the coastline, in particular with a study case on risks existing around the Berre pond (Bouches-du-Rh“ne), the invading Caulerpa taxifolia, a tropical algae found in the

Ministry for Ecological and Solidarity Transition
Educational materials

This book is a summary of the 10 issues of 'Aléas et Enjeux'. It book proposes study cases and various articles on the following themes: avalanches, debris flows and landslides, technological risks, major risks and cities, floods, major risks and rural

Ministry for Ecological and Solidarity Transition
Educational materials

This illustrated booklet can be used as a part of the Package Learning Materials on Environment 2 (Planet 2), or individually by adult learners in non-formal education programmes, grade 4-8 school and out-of school children, and those involved in

Asia/Pacific Cultural Centre for UNESCO
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