Natural Hazard

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Definitions

European Definitions

Other International Definitions

UNISDR

Natural process or phenomenon that may cause loss of life, injury or other health impacts, property damage, loss of livelihoods and services, social and economic disruption, or environmental damage. [1]

Natural hazards are a sub-set of all hazards. The term is used to describe actual hazard events as well as the latent hazard conditions that may give rise to future events. Natural hazard events can be characterized by their magnitude or intensity, speed of onset, duration, and area of extent. For example, earthquakes have short durations and usually affect a relatively small region, whereas droughts are slow to develop and fade away and often affect large regions. In some cases hazards may be coupled, as in the flood caused by a hurricane or the tsunami that is created by an earthquake.

National Definitions

Bulgaria

Natural phenomena shall denote events of geologic (geophysical, geologic), hydrometeorological and biological nature, such as earthquakes, floods, landslides (landslips, mudslides, avalanches), storms, hail, large snow pilings, freezing, drought, wildfires, mass infections of epidemic and epizootic character, invasions of pests and the like, caused by the forces of nature. [2]

Природни явления: са явления с геологичен (геофизичен, геоложки), хидрометеорологичен и биологичен произход, като земетресения, наводнения, движения на маси (свлачища, потоци от отломки, лавини), бури, градушки, големи снежни натрупвания, замръзвания, суши, горски пожари, масови заболявания от епидемичен и епизоотичен характер, нашествия на вредители и други подобни, причинени от природни сили. [3]


Canada

A source of potential harm originating from a meteorological, environmental, geological or biological event.

Source de dommage potential provenant d’un événement météorologique, environnemental, géologique ou biologique. [4]



Republic of Trinidad & Tobago

Natural process or phenomenon that may cause loss of life, injury or other health impacts, property damage, loss of livelihoods and services, social and economic disruption, or environmental damage. [5]


United States

Natural hazard is a source of harm or difficulty created by a meteorological, environmental, or geological phenomenon or combination of phenomena. [6]



Other Definitions

Ontario (Canada)

Natural hazard is a naturally occurring event such as a forest fire, flood and/or severe weather that has the potential to harm people, property, the environment, the economy and/or services. [7]

Danger naturel: phénomène naturel comme un feu de forêt, une inondation ou un temps violent susceptibles de nuire aux personnes, aux biens, à l’environnement, à l’économie ou à des services. [7]


Standard Definition

See also

Notes