24.15. Epicentre and Earthquake Magnitude Estimation

Try these first

1. 1.

   What does magnitude measure in an earthquake?

   Hint

   Think about the strength of the earthquake.

2. 2.

   True or False: Intensity measures the earthquake's effects at the surface.

   Hint

   Consider what people feel during an earthquake.

3. 3.

   What does the Richter Scale measure?

   • Intensity of shaking
   • Magnitude of earthquake
   • Depth of earthquake

   Hint

   Think about what number tells us how ‘strong’ an earthquake is.

4. 4.

   True or False: The Modified Mercalli Intensity Scale can vary based on individual experiences.

   • True
   • False

   Hint

   How you feel during the earthquake can differ from others.

5. 5.

   Analyze how structural design might differ in an area with frequent high-magnitude earthquakes compared to an area with low magnitude but high intensity.

   Hint

   Consider the earthquake's characteristics and the local response strategies.

6. 6.

   Given a scenario with a 7.0 magnitude earthquake recorded with a Mercalli intensity of IX, what implications might this have for urban planning in the affected area?

   Hint

   Think about the expected damage and how it affects building regulations.