24.8.1. Isoseismal Maps

Try these first

1. 1.

   What is an isoseismal map?

   Hint

   Think about how intensity is measured across different areas.

2. 2.

   Where is the epicentre typically found on an isoseismal map?

   Hint

   Consider where the strongest shaking is observed.

3. 3.

   What does an isoseismal map display?

   • Time of the earthquake
   • Points of equal seismic intensity
   • Distance from the epicentre

   Hint

   Focus on what these maps represent tangibly after an earthquake.

4. 4.

   The epicentre is generally found at which location on an isoseismal map?

   • At the outermost contour
   • At the innermost contour
   • Distributed randomly

   Hint

   Think about where the strongest shaking occurs.

5. 5.

   Given an example isoseismal map from a recent earthquake, outline the steps to identify and analyze the epicentre's location and intensity variations.

   Hint

   Refer back to the definitions of epicentre and intensity.

6. 6.

   Critically evaluate how isoseismal maps can inform urban planning and infrastructure development in earthquake-prone regions.

   Hint

   Consider both safety and economic implications.