25.5.1. Ground Motion Estimation

Try these first

1. 1.

   What does hypocentral distance refer to?

   Hint

   Think about the relationship between the earthquake's start point and nearby buildings.

2. 2.

   Which type of earthquake is typically more damaging, shallow or deep?

   Hint

   Consider which earthquakes are closer to the Earth's surface.

3. 3.

   What is the primary effect of distance from the hypocentre?

   • Increase in intensity
   • Decrease in intensity
   • No effect

   Hint

   Consider how waves lose strength over distance.

4. 4.

   True or False: Shallow-focus earthquakes produce broader but less intense shaking compared to deep-focus earthquakes.

   • True
   • False

   Hint

   Remember the definitions of shallow and deep-focus earthquakes.

5. 5.

   Evaluate a scenario where a city is located 60 km from a shallow-focus earthquake at a depth of 10 km and a deep-focus earthquake at a depth of 600 km. Describe the probable seismic impacts on the city.

   Hint

   Consider the differences in depth and distance while analyzing ground motion.

6. 6.

   Design a controlled experiment to measure ground motion effects at varying hypocentral distances. What parameters would you investigate, and what results would you anticipate?

   Hint

   Think about how to simulate real earthquake scenarios safely in controlled settings.