Natural hazards Flashcards
Natural hazard
A naturally occurring event that has the potential to affect people’s lives or properties
Natural disasters
When natural hazards do affect people’s lives or properties
Drought
A long period of time when rainfall is below average
Earthquake
The movement of the ground caused by tectonic plate activity. This is either movement of the plate boundary, fault zones caused by tension or compression which makes the plate rip or expansion of magma chambers in volcanoes
Magma
This is the molten rock which lies below the earth,s crust. When ejected, it is called lava
Epicentre
The point on the earth’s surface vertically above the focus of the earthquake
Focus
The point of origin of an earthquake