Various Types of Natural Hazards

Various Types of Natural Hazards

Hydrometeorological Hazard: This refers to atmospheric, hydrological, or oceanographic processes or phenomena that have the potential to cause loss of life, injuries, health issues, property damage, livelihood disruptions, economic and social instability, or environmental degradation.

Hydrological: Events resulting from deviations in the natural water cycle or water body overflows due to wind set-up.

Meteorological: Events caused by atmospheric processes occurring over short timeframes, ranging from minutes to days, and at small to meso-scales.

Climatological: Events linked to long-term climate processes that span from intra-seasonal variations to multi-decadal climate shifts.

Common hydrometeorological hazards include tropical cyclones (hurricanes, typhoons), thunderstorms, hailstorms, tornadoes, blizzards, heavy snowfall, avalanches, coastal storm surges, floods (including flash floods), droughts, heatwaves, and cold spells.

These conditions can also contribute to secondary hazards such as landslides, wildfires, locust infestations, disease outbreaks, and the transport of toxic substances or volcanic ash.

Geological Hazard: A natural process or event of geological origin that can lead to fatalities, injuries, health complications, property destruction, disruption of livelihoods and essential services, economic turmoil, or environmental harm.

Geological hazards encompass internal Earth processes such as earthquakes, volcanic eruptions, and related geophysical occurrences like mass movements, landslides, rockslides, surface collapses, and mud or debris flows.

Hydrometeorological factors often influence these geological processes.

Tsunamis, although triggered by underwater earthquakes or geological events, are primarily oceanic processes that manifest as coastal water- related hazards.

Biological Hazard: A hazard originating from organic sources or biological vectors, including exposure to pathogenic microorganisms, toxins, or bioactive substances, which can result in illness, injury, death, environmental damage, or socio-economic disruption.

Examples include epidemic outbreaks, plant and animal contagions, insect infestations, and animal plagues.

Socio-natural Hazard: These hazards arise due to the interaction between natural hazards and human- induced environmental degradation. Increased frequency or intensity of events like landslides, flooding, land subsidence, and drought can result from the overexploitation or deterioration of land and natural resources.

This term describes situations where human activities contribute to an increased frequency or intensity of certain hazards beyond their natural occurrence.

Research indicates a rising burden of disasters linked to these hazards. Effective land and environmental resource management can help mitigate and prevent socio-natural hazards.

Technological Hazard: These hazards stem from technological or industrial activities, including accidents, hazardous procedures, infrastructure failures, or specific human actions that may lead to loss of life, injuries, health impacts, property destruction, livelihood

disruptions, economic instability, or environmental harm.

Examples include industrial pollution, nuclear radiation, toxic waste contamination, dam failures, transportation accidents, factory explosions, fires,

and chemical spills.

In some cases, technological hazards may be triggered by the effects of natural hazard events.