Introduction to Hazards

  • Created by: widdew01
  • Created on: 03-12-18 13:12
What is a hazard?
A threat which has the potential to cause injury, loss of life, damage to property, socio-economic disruption or environmental degradation. It can be natural or caused by humans (contamination of ground water supplies)
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What is a natural hazard?
Natural hazards are naturally occurring physical phenomena caused either by rapid or slow onset events which can be geophysical hydrological, climatological, meteorological or biological
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When is a hazardous event classed as a disaster?
>10+ people killed >100+ people are affected >A state of emergency is declared >International assistance is called for
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Geophysical nature of a hazard
Caused by earth processes and they can be caused by internal earth processes of tectonic activity, or by external processes of geomorphological origin involving mass movement.
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Hydrological nature of a hazard
Caused by the occurrence, movement and distribution of surface and underground water.
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Atmospheric nature of a hazard
Processes operating in the atmosphere resulting in extreme weather or atmospheric conditions.
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Define primary effect
Occur as a result of the hazard itself
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Define secondary effect
Occur as a result of primary effects.
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Other cards in this set

Card 2

Front

What is a natural hazard?

Back

Natural hazards are naturally occurring physical phenomena caused either by rapid or slow onset events which can be geophysical hydrological, climatological, meteorological or biological

Card 3

Front

When is a hazardous event classed as a disaster?

Back

Preview of the front of card 3

Card 4

Front

Geophysical nature of a hazard

Back

Preview of the front of card 4

Card 5

Front

Hydrological nature of a hazard

Back

Preview of the front of card 5
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