Example : Natural calamities such as famine, floods, earthquakes, tsunami, volcanic eruption, etc. are the instances of unplanned changes. Social change which occurs in the natural course is called the unplanned change. The unplanned changes are spontaneous, accidental or the product of sudden decision.
When a natural disaster takes place, there is a loss of human and animal lives as well as property. Rehabilitation programmes have to be immediately designed and implemented for the affected persons. Unplanned change by its very name suggests that it is a type of change that is not planned. It happens suddenly.