Hazard may be defined as “a dangerous
condition or event, that threat or have the potential for causing injury to
life or damage to property or the environment.” Hazards in Dhaka city can be
grouped into two broad categories namely natural and manmade.
Natural
hazards:
Natural hazards are hazards, which are caused
because of natural phenomena (hazards with meteorological, geological or even
biological origin). Examples of natural hazards are cyclones, tsunamis,
earthquake and volcanic eruption, which are exclusively of natural origin.
Landslides, floods, drought, fires are socio-natural hazards since their causes
are both natural and man-made. For example flooding may be caused because of
heavy rains, landslide or blocking of drains with solid waste.