GEOLOGY

Detailed explanation-1: -Geological or geophysical hazards originate from internal earth processes. Examples are earthquakes, volcanic activity and emissions, and related geophysical processes such as mass movements, landslides, rockslides, surface collapses and debris or mud flows.

Detailed explanation-2: -Geomorphic hazards are those originating from the lithosphere, including volcanic eruptions, earthquakes, tsunamis and mass movement (landslides or avalanches).

Detailed explanation-3: -Generally, these processes are caused by wind, waves, glacial action, volcanism, tectonic activity, and groundwater movement.

Detailed explanation-4: -Geological hazards occur because of geological processes such as movement in the tectonic plates and volcanic activity. These events include earthquakes, volcanic eruptions, and landslides. Meteorological hazards occur as a result of processes in the atmosphere.

Detailed explanation-5: -Natural hazards can be classified into several broad categories: geological hazards, hydrological hazards, meteorological hazards, and biological hazards.