Hazards

• Earthquakes are found along all types of plate boundaries
• Volcanoes are found at constructive and destructive plate boundaries
• Earthquakes are sudden violent shaking of the ground caused by movements in the earth's crust
• Earthquakes are measured using the magnitude scale
• The 2010 Haiti earthquake killed over 200000 people
• The 2011 Japan earthquake killed over 20000 people
• Developing countries are more likely to have natural disasters than developed countries because of a lack of early warning systems
• Composite volcanoes are found at destructive plate boundaries
• Features of a composite volcano

  • Acidic lava
  • Steep sides (Lava doesn't flow long before it solidifies)
  • More violent eruptions
  • Longer periods between eruptions
• Shield volcanoes are found at constructive plate boundaries
• Features of a shield volcano

  • Non acidic and runny lava
  • Gentle sloping sides (Lava flows for longer before it solidifies)
  • Less violent eruptions
  • Shorter periods between eruptions