impacts of earthquakes

• Magnitude - the higher the magnitude the greater the destruction. 
• Depth of focus:

  Shallow quakes are more destructive. The further it travels the more energy is lost. Shallow is less than 70 km. 
• Distance from epicentre:

  Maximum damage is found at the epicentre. Damage decreases further from it. Variations in ground conditions may modify 
•  

  Population density:

  The higher the population the more fatalities occur. 

   
• Degree of urbanisation:

  Buildings kill people, earthquakes don’t. greater rebuilding costs in urban places. 

   
• Time of day:

  Greatest impact during rush hour and lunchtime due to more people out. Lower impact at night from less people travelling. 
• Time of year:

  Earthquakes in winter kill more people than in summer due to cold temperatures. 
• Earthquake proof designs:

  Earthquake proof buildings are less likely to be damaged and kill people. 

   
• Preparedness:

  Education and procedures reduce fatalities. 
• History of quakes:

  Regions that have had few earthquakes are less prepared.