Answer:
Disasters caused by human action, negligence error, or involving the failure of a system are called Man-Made disasters. Man-Made disaster are in turn categorized as technological or sociological. Technological disasters are the result of failure of technology, such as engineering failures, transport disasters or environmental disasters. Sociological disasters have a strong human motive, such as criminal acts, stampedes, riot and war.
Man-Made disasters is caused either intentionally or by accident cause severe threats to public health and well being. Because their occurrence is unpredictable, man-made disasters pose an especially challenging threat that must be dealt with through vigilance, and proper preparedness and response.