25.4.1. Triangulation Using P- and S-Waves

Try these first

1. 1.

   What does P-wave stand for?

   Hint

   Think about which wave moves faster.

2. 2.

   What is the purpose of triangulation in locating earthquakes?

   Hint

   Consider how we can use measurements from different points.

3. 3.

   What is the primary function of triangulation in earthquake studies?

   • To measure the intensity of earthquakes
   • To locate the hypocentre of earthquakes
   • To assess damage caused by earthquakes

   Hint

   Think about the key purpose of finding the source of seismic waves.

4. 4.

   True or False: P-waves are slower than S-waves.

   • True
   • False

   Hint

   Remember the order in which seismic waves arrive.

5. 5.

   If a seismograph station detects P-waves at 2 seconds and S-waves at 5 seconds, calculate the time difference. How would this information help triangulate the hypocentre?

   Hint

   Remember, the larger the time difference, the further away the hypocentre.

6. 6.

   A hypothetical country located between two major fault lines experiences severe seismic activity. How should triangulation inform their building codes and emergency response strategies?

   Hint

   Consider how structure integrity relates to seismic activity.