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The potential occurrence of a natural or human-induced physical event that may cause loss of life, injury, or other health outcomes, as well as damage and loss to property, infrastructure, livelihoods, service provision, and environmental resources. 

Hazard Mapping

Hazard mapping in disaster prevention, mitigation and response are perceived as a process of identifying and documenting geographical information on all hazards and their degree of risks. To effectively and efficiently conduct hazards mapping, the overall process should be conducted with the holistic approach. The mapping shall not be limited to specific hazard types but must cover or encapsulate vulnerability mapping, risk mapping, risk indexing and mapping of safe haven.


The main objective is to produce maps that indicate ecological and geographical locations of hazards that would be used to guide and direct the formulation of policies and legislations regarding disaster management nation-wide and to serve as a guide for disaster response. This covers planning, preparation, mitigation, emergency response, resettlement, and reconstruction.

Types of Hazards

Sierra Leone is vulnerable to hazards which are categorized into natural and man-made. The most common hazards to which the country may be vulnerable are listed below:

a)  Hydrometeorological

b)  Geological Hazards 

c)  Ecological Hazards

d)  Biological Hazards
      • Pest Infestation
      • Outbreak of Epidemic Diseases