GEOLOGY

Detailed explanation-1: -A natural disaster is “the negative impact following an actual occurrence of natural hazard in the event that it significantly harms a community". A natural disaster can cause loss of life or damage property, and typically leaves some economic damage in its wake.

Detailed explanation-2: -A natural disaster is characterized by the abnormal intensity of a natural agent (flood, mudslide, earthquake, avalanche, drought) when the usual measures to be taken to prevent this damage were not able to prevent their emergence or were not able to be taken.

Detailed explanation-3: -Natural hazards become disasters when people’s lives and livelihoods are destroyed. Human and material losses caused by such disasters are a major obstacle to sustainable development.

Detailed explanation-4: -Natural hazards can be classified into several broad categories: geological hazards, hydrological hazards, meteorological hazards, and biological hazards.

Detailed explanation-5: -Historically, droughts and floods were the most fatal disaster events. Deaths from these events are now very low – the most deadly events today tend to be earthquakes.