BASIC CONCEPT OF HAZARD Flashcards
has only the potential to cause
destruction or negative impacts to life
and property.
hazard
is a hazard that already
occurred and already caused destruction
and devastating impacts.
disaster
Classification of Hazards
•Natural Hazards
•Quasi-natural Hazards
•Man-made/Human-induced/Anthropogenic
• are naturally occurring phenomena or processes.
Natural Hazards
• are hazards that are outcomes of the
interaction of natural phenomena and man-made activities.
Example: smog or desertification
Quasi-natural Hazards
• Hazards are those that result from human activities and actions.
Man-made/Human-induced/Anthropogenic
Classification of Natural Hazards
- Geologic Hazards.
- Hydrometeorological Hazards
- Biological Hazards
• are natural phenomena or processes that occur in the Earth’s Crust.
Examples: earthquakes, tsunami, volcanic eruptions, mass movement such as landslides and rockslides, subsidence, liquefaction.
Geologic Hazards
• are atmospheric, hydrological, and
oceanographic natural processes or
phenomena.
Examples:
- tropical cyclones: tropical depression, storms, typhoons, and super typhoons
Hydrometeorological Hazards
• living things or substances from living things that can cause illnesses and diseases or any harm.
Examples:
• outbreaks of epidemic diseases in humans,
animals, and plants
• infestations
Biological Hazards
• are man-made hazards caused by
technological, infrastructure, or industrial accidents or failures.
Examples: nuclear explosion, industrial pollution, vehicular accidents, industrial explosions and fires, and collapse of buildings.
TECHNOLOGICAL HAZARD
• are processes caused or induced by human activities or in combination with natural hazards.
Examples:
• deforestation, land degradation, loss of biodiversity
• land, water, and air pollution
• climate change
• ozone depletion
ENVIRONMENTAL DEGRADATION
Types of Hazards
- Slow onset hazards
- Rapid or sudden onset hazards
• are hazards that have early signs or
indicators before its occurrence.
(* sea level rise; * increasing temperatures; * ocean
acidification; * glacial retreat and related impacts; *
salinization; * land and forest degradation; * loss of
biodiversity; * desertification).
Slow onset hazards
• are hazards that occur or strike without any prior signs or warnings.
(wind storms, floods, wild fires, landslides, avalanches, earthquakes and volcanic eruptions.)
Rapid or sudden onset hazards