An event involving a significant number of people and/or significant damage
Disaster
100
How many deaths minimum and the economic damage does it take to consider something a disaster?
30 deaths and $500 000
100
what are the 3 types of hazards?
Geophysical hazards (natural)
Hydrometerological hazards (natural and human created)
Biologically related and medical hazards
100
the degree to which a particular hazard or phenomenon can occur
Exposure
200
The potential degree to which an individual or community could be affected by a natural hazard?
Sensitivity
200
the degree to which a person or community is adversely affected by a hazard. It equals exposure + sensitivity
Vulnerability
200
the average number of years between an event of a certain size in a location
Recurrence Interval (return period)
200
Magnitude and frequency are _________
Inversely proportional as the magnitude increases the frequency decreases
200
Why Do People Live Where They Are Vulnerable to Natural Hazards?
Agriculture: Fertile Soils
Scenic Views
Memory of last disaster long forgotten
Community established before natural hazard was identified
No Options
300
taking actions to physically reduce the exposure of the community to the hazard
Mitigation
300
accepting that the hazard will occur, or that it cannot be completely mitigated or eliminated; taking actions to reduce the impact and the communities sensitivity and vulnerability.
Adaptation
300
Approaches to Mitigation & Adaptation
- Affecting the cause
-Modify the hazard
-Modify the loss potential
-Spread the loss
-Planning for the loss
-Bear the loss
300
Approaches to natural hazard assessment
Assessment of the degree of exposure
Evaluation of the community’s sensitivity to a hazard