According to the USGS (United Sates Geological Survey)
Hazards are unpreventable natural events that, by their nature,
may expose our Nation's population to the risk of death or injury and may
damage or destroy private property, societal infrastructure, and
agricultural or other developed land. Hazards dealt with by the USGS include
earthquakes, volcanoes, floods, landslides, coastal storms, wildfires,
and outbreaks of disease in wildlife populations.
Note: The concept of Hazards
used by the USGS corresponds to what we will be referring to as Natural
Disasters in this course.