1. Geological hazards

2. The forces of the Earth´s interior can cause catastrophic damage.
Volcanoes
Earthquakes
Tidal Waves

3. Volcanoes
Are landforms created by the emission of molten materials ( lava), ash and gases to the surface from the interior of the Earth´s crust.

4. Earthquakes
Are sudden powerful movements of the Earth´s crust, caused by a liberation of energy from the Earth´s interior in the forms of seismic waves.
The intensity of an earthquake is measured on the Richter scale.

5. Tidal Waves
Are caused by earthquakes under de sea and can produce enormous waves called tsunamis.
If a tsunami reaches the coast, it can cause catastrophic damage.