tectonics

• Natural hazards are extreme natural events that have the possibility to cause loss of life, extreme damage to property and disrupt human activities. Some natural hazards, such as flooding, can happen anywhere in the world. Other natural hazards, such as tornadoes, can only happen in specific areas.
• Natural disasters: is where life or buildings are lost 
• Geological hazards: caused by land and tectonic processes 

  Volcano, earthquakes, avalanche, landslide
• Meteorological hazards:  caused by weather and climate

  Heat wave, cold events eg beat from the east, drought, tropical storms, flooding and climate change
• Volcanoes and earthquakes do not occur just anywhere. The map below shows the distribution of recent earthquakes and volcanic eruptions. From the map, you will notice volcanoes and earthquakes mainly occur in narrow bands. When compared to the map above it is clear that the majority of the world’s earthquakes and volcanic eruptions occur along plate boundaries.
• The Ring of Fire is an area around the rim of the Pacific Ocean. It is known and named due to the amount of volcanic eruptions and earthquakes that occur in the region, as well as its horseshoe-shaped belt. It is around 40,000 km long and 500 km wide.

  Hawaii is an arc of volcanic islands, found above a hot spot.
• 1. Population density may affect the severity of the earthquake as the more people living in an area, the more likely that more deaths and casualties may arise
• 1. Location can affect the severity of an earthquake. The depth of the focus if it's shallow, it can be more destructive. Distance from the epicentre the effects of an earthquake are more severe at its centre. If it's closer to the earthquake it will be more severe.
• 1. Levels of development may affect the severity of the earthquake as Richer countries will be more likely to be able to predict, protect and prepare themselves from the effects of an earthquake. Whereas poorer countries don't have the funds to do so.
• 1. Prediction, planning, protection may affect the severity of the earthquake as it helps to reduce the impact and increases their chance of survival.
• 1. Type may affect the severity of the earthquake the type of local geology beneath the instrument influences the amount of shaking at that location
• 1. Frequency may affect the severity of the earthquake
  2. Magnitude may affect the severity of the earthquake. The size of the earthquake on the Richter scale the higher it is on the scale, the more destruction it can cause.