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Disaster
A sudden, catastrophic event that causes significant disruption, damage, and loss of life, occurring when a hazard interacts with exposure and vulnerability.
Hazard
A natural or human-made event that has the potential to cause harm, such as typhoons, earthquakes, or chemical spills.
Exposure
The people, property, and environment that are at risk of being affected by a hazard.
Vulnerability
The inability of a community or system to withstand or cope with a hazard.
Disaster Risk
The potential loss of lives, injuries, property, and economic damage due to a hazard.
Risk Assessment
A process to identify and analyze the potential impact of hazards on people, infrastructure, and the environment.
Factors Determining the Magnitude of a Disaster
Severity of the hazard, level of exposure, and degree of vulnerability.
Disaster Risk Formula
Disaster Risk = Hazard × Exposure × Vulnerability.
Physical Impact of Disasters
Includes deaths, injuries, and destruction of buildings and homes.
Social Exposure
Population density, health systems, and migration trends that can increase risk.
Economic Vulnerability
Lack of resources in poor households for disaster preparedness, leading to significant impacts during disasters.
Measuring Vulnerability
Expressed as a value between 0 and 1, representing the degree of vulnerability of a community or structure.
Essential Facilities at Risk
Includes hospitals, schools, and government offices that are critical for community safety and management during disasters.