Describe the characteristics that define a disaster and the conceptual relationship between hazard, vulnerability, and disaster.

Outline the four characteristics that define a disaster.

• A disaster involves a sudden onset or rapid escalation of an event.
• It causes widespread impact, affecting a significant area, population, or system.
• The event overwhelms local capacity, meaning the affected community's resources are insufficient to cope.
• It results in significant loss, including human lives, material damage, economic disruption, or environmental degradation.

Explain the conceptual relationship that exist in a disaster. A disaster conceptually arises from the interaction between a hazard and vulnerability. A hazard is a potential threat (e.g., an earthquake or flood), while vulnerability refers to the susceptibility of a community or system to the impacts of that hazard (e.g., weak infrastructure or lack of preparedness). When a hazard impacts a vulnerable population, it leads to a disaster, causing severe disruption and damage that exceeds the community's ability to cope.