How Earthquakes Happen (OCR GCSE Geography B (Geography for Enquiring Minds)): Quizzes
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Practise the questions
10 questions from this quiz
What triggers an earthquake at a plate boundary?
What triggers an earthquake at a plate boundary?
Sudden release of stored energy
What is the focus of an earthquake?
What is the focus of an earthquake?
Underground point where it originates
What is the epicentre of an earthquake?
What is the epicentre of an earthquake?
Surface point directly above the focus
At what depth do deep focus earthquakes occur?
At what depth do deep focus earthquakes occur?
70 to 700 kilometres below the surface
Where do deep focus earthquakes occur?
Where do deep focus earthquakes occur?
Only at destructive plate boundaries
Within what depth do shallow focus earthquakes begin?
Within what depth do shallow focus earthquakes begin?
Within 70 kilometres of the surface
Why are shallow focus earthquakes more dangerous to populations?
Why are shallow focus earthquakes more dangerous to populations?
Waves spread horizontally over larger area
What do seismometers do?
What do seismometers do?
Detect and record seismic waves
What does the Richter scale measure?
What does the Richter scale measure?
Magnitude (energy released)
What does the Mercalli scale measure?
What does the Mercalli scale measure?
Effects and damage caused