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The Degg's Model shows that a natural disaster only occurs if a vulnerable population is exposed to a hazard. [1] It was devised in 1992 by Martin Degg, [2] head of the geography department at the University of Chester, in England. It also depends on how far people are from the epicentre of an earthquake, volcano, or any other natural tectonic ...
Hazard maps are created and used in conjunction with several natural disasters. [1] Different hazard maps have different uses. For instance, the hazard map created by the Rizal Geological Survey is used by Rizalian insurance agencies in order to properly adjust insurance for people living in hazardous areas. [2]
The term natural disaster has been called a misnomer already in 1976. [6] A disaster is a result of a natural hazard impacting a vulnerable community. But disasters can be avoided. Earthquakes, droughts, floods, storms, and other events lead to disasters because of human action and inaction.
Lake Nyos, the site of a limnic eruption in 1986. A limnic eruption, also known as a lake overturn, is a very rare type of natural hazard in which dissolved carbon dioxide (CO 2) suddenly erupts from deep lake waters, forming a gas cloud capable of asphyxiating wildlife, livestock, and humans.
[22] [23] [24] A disaster happens when a natural or human-made hazard impacts a vulnerable community. It results from the combination of the hazard and the exposure of a vulnerable society. Nowadays it is hard to distinguish between natural and human-made disasters. [21] [25] [26] The term natural disaster was already challenged in 1976. [24]
A bow-tie diagram is a graphic tool used to describe a possible damage process in terms of the mechanisms that may initiate an event in which energy is released, creating possible outcomes, which themselves produce adverse consequences such as injury and damage. The diagram is centred on the (generally unintended) event with credible initiating ...
In the 1970s the concept of vulnerability was introduced within the discourse on natural hazards and disaster by O'Keefe, Westgate, and Wisner. [11] In "taking the naturalness out of natural disasters" these authors insisted that socio-economic conditions are the causes for natural disasters.
Download as PDF; Printable version; ... Natural disasters (27 C, 34 P) S. Space hazards (10 C, ... Pages in category "Natural hazards" The following 9 pages are in ...