Hazard

• Hazard: potential for damage to man and his environment that results of natural events occurring such as floods, etc
• Hazard: any unusual event that has the potential to threaten people's lives and properties
• an event per se does not constitute to a hazard, without threat to a population a volcano eruption remains an event unless it occurs next to a population, it becomes a disaster
• Types of hazards: Natural, Secondary, Technological, and Quasi-natural hazards.
• Natural Hazards: result from earth's natural processes like earthquakes and volcanic eruption
• Secondary Hazards: Consequences of other hazards like landslides and tsunamis
• Technological Hazards: man-made hazards like radiation leaks, toxicity of land, transport accidents
• Quasi-natural Hazards: interaction of natural processes and human activities (smog, desertification)
• Hazard profiling is the process of identifying the characteristics of a person who is at risk of being a victim of crime
• Hazard profiling: magnitude, frequency, duration, and casualties
• Magnitude: can be assessed by measurements. Scaling can vary from countries.
• Magnitude 5.0 is considered high by PHIVOLCS
• Floods reaching 10m is considered high-scale.
• Typhoons with winds up to 150kph is considered strong and powerful.
• Frequency: tells us the area's proneness to hazards. This is usually but not always associated with the area's geographical location.
• Frequency: a coastal community may be frequented by storm surges
• Duration: The assessment is either short or long. In an earthquake 1 min shaking is deemed to be long
• Casualties: impact of hazard, whether the exposed is directly and indirectly affected.