Writing about earthquakes

This task is about earthquakes.

Question 1Change answer

Many scientific terms can be used when writing about earthquakes. Some of them are in the key list below. 
 

Key List
 
crust    Earth    epicentre    fault line    focu    Mercalli     plate 
boundary    Richter    s-wave    seismograph    seismometer    p-wave
 
Write a paragraph about earthquakes in the space below. The paragraph should explain
  • what happens when earthquakes occur,
  • where they occur,
  • the difference between the focus and the epicentre,
  • what are used to record earthquakes, and
  • how they are measured.
Use as many words from the key list as you can. Make sure that the words are used correctly so that someone who is studying science can understand what you have written.