Natural disasters form due to various natural processes, such as geological activity, weather patterns, and climatic changes. These processes can trigger disasters like earthquakes, volcanic eruptions, hurricanes, cyclones, floods, landslides, droughts, and wildfires.
Human activities may also contribute to the formation of natural disasters, especially in the case of climate change.
The severity and impact of a disaster depend on several factors, including its magnitude, duration, location, and the vulnerability of human population and infrastructure in the affected area.