Primary and secondary effects.

The effect of an earthquake is the damage which happens as a result of the earthquake. The effects of an earthquake can vary depending on:

  • The size of the earthquake on the Richter scale – the higher it is on the scale, the more destruction it can cause.
  • Level of development – whether it occurs in a rich or a poor country. Richer countries will be more likely to be able to predict, protect and prepare themselves from the effects of an earthquake.
  • The depth of the focus – if it’s shallow, it can be more destructive.
  • Distance from epicentre – the effects of an earthquake are more severe at its centre.
  • Population density – the more people living in an area, the more likely that more deaths and casualties may arise.
  • The time of day – whether people are in their homes, work or travelling.
Earthquakes can cause damage to gas pipes,

In the case of an earthquake, there are many effect that there can be. They are classed into two groups, Primary and Secondary. People can also get prepared for and earthquake. See my page on Prediction, preparation and protection for more information.

Primary Effects – hazards straight after and earthquake

  1. Falling items
  2. People falling out of buildings
  3. Buildings collapsing

Secondary effects – Problems that can occur days/hours after an earthquake

  1. Leaky gas pipes
  2. Fires
  3. Tsunamis
  4. Flooding
  5. Landslides