Question

what are the causes of disaster?

Answer 1

We commonly use three classifications of causes for disasters:

Natural. Examples are earthquakes, floods, and tsunamis

Man Made. Chemical spills, pollution, landslides (due to bad farming practices or poor infrastructure decisions), or nuclear fallout

Complex. Combination of any of the above

On their own, earthquakes, floods, landslides, and other disasters can be devastatingly destructive. However, the destruction is multiplied or diminished when combined with economic, environmental, and social factors.

There are several factors that can heighten or lessen the effects of a disaster on a population segment:

Poverty. Usually, the greater the poverty, the harder the impact of a disaster.

Increased population density. Generally, the higher the population at the epicenter of a disaster event, the greater the impact on that disaster. Loss of human life and injuries are one of the major determinants of disaster severity.

Rapid urbanization. Poor planning and provision of safe infrastructure can be an aggravating factor in severity of disasters. For example, rapid building construction in urbanizing areas may cut corners on good building practices.

Environmental degradation. Removal of trees and forest cover from a watershed area can remove ability of rainfall absorption into the soil and aquifer causing larger volumes of surface runoff after a tropical storm.

Lack of awareness or preparation for common disasters

War and civil strife.

Socio/political issues.

Answer 2

Natural disasters are caused due to different reasons like soil erosion, seismic activity, tectonic movements, air pressure, and ocean currents etc.
natural disaster is not a new phenomenon these natural events have occurred since the earth began forming and continue to cause serious damage and loss of life all over .