a flow of mud down the side of a volcano which can become a serious hazard

reducing the risk from natural hazards before they happen, such as building earthquake proof buildings

recording physical changes to help predict where and when a natural hazard might strike

forecasting future natural hazards, such as when and where they will strike

The coming together and the moving apart of tectonic plates

actions taken before a hazard strikes to reduce the impact

judging the amount of damage and destruction an area will get from any given hazard

volcanoes, earthquakes, tsunami and some landslides that have been caused by tectonic plates

an area of low pressure with powerful winds moving in a spiral around the calm central point called the eye of the storm, along with heavy rain

an opening in the Earth's crust out of which lava, ash and gases erupt

The point on the earth's surface that is directly above the focus of the earthquake

The point within the earth's crust that the earthquake is generated, due to shifting tectonic plates.

The Transport networks and the water, sewage and communications systems that are vital to people and their settlements and businesses.

A natural event or hazard causing damage in the physical environment, such as storm, volcanic eruption or earthquake.

Something happening in the physical environment, such as storm, volcanic eruption or earthquake.

A devastating eruption of extremely hot gas, ash and rocks during a period of explosive volcanic activity; the downslope flow is capable or reaching 200kph

A rapid rise of sea level in which water is piled up against the coastline to a level far exceeding the normal. It tends to happen when there is very low atmospheric pressure and where seawater is pushed into a narrow channel.

The pushing down of one tectonic plate under another at a destructive plate margin. Pressure and heat convert the plate into magma.