Outline the four characteristics that define a disaster and explain the conceptual relationship that exists in a disaster.

1. Outline the four characteristics that define a disaster.

Four characteristics that define a disaster are:

• Sudden onset: Disasters often occur abruptly, with little to no warning, causing immediate and widespread impact.
• Widespread impact: They affect a large area or a significant number of people, leading to extensive damage, loss of life, or disruption.
• Exceeds local capacity: The scale of the event overwhelms the affected community's ability to cope using its own resources, requiring external assistance.
• Significant loss: Disasters result in substantial human, material, economic, or environmental losses.

2. Explain the conceptual relationship that exists in a disaster.

The conceptual relationship in a disaster is often understood as the interaction between a hazard, vulnerability, and capacity. A disaster occurs when a hazard (a potentially damaging physical event or phenomenon) impacts a vulnerable community (one susceptible to harm due to socio-economic, physical, or environmental factors) whose capacity (resources and strengths to cope and resist) is insufficient to withstand or recover from the impact. Essentially, Disaster = Hazard $\times$ Vulnerability / Capacity.