A hazard is a dangerous physical condition or event.
Earthquakes, floods, volcanic eruption, landslides, droughts etc. are called natural hazards before they cause loss of life and damage to property.
Small numbers of people are affected.
It may cause injury, loss of life or damage of property.
Earthquakes, floods, volcanoes, tsunami, land slide, drought etc. are natural hazards.
A disaster disrupts the normal function of the society caused by a hazard.
It causes damage to property and loss of life but it disrupts the opportunities of employment also.
A large number of people are affected.
It causes wide spread loss to life and property.
It affects the society to such an extent that external aid becomes, necessary to compensate the losses.