25.3. Seismic Wave Generation at the Hypocentre

Try these first

1. 1.

   What does the term hypocentre refer to?

   Hint

   Think about where the earthquake starts.

2. 2.

   Why are P-waves significant in earthquakes?

   Hint

   Recall what waves come first during a quake.

3. 3.

   What are P-waves known for?

   • They cause the most damage
   • They are fastest seismic waves
   • They can't travel through liquids

   Hint

   Recall which waves arrive first.

4. 4.

   True or False: S-waves arrive before P-waves.

   • True
   • False

   Hint

   Remember the order of wave arrivals.

5. 5.

   A seismo station records the arrival time of P-waves at 2 seconds and S-waves at 6 seconds. If the seismic velocity of P-waves is 6 km/s, what is the hypocentral distance from the station?

   Hint

   Remember the formula for distance is speed multiplied by time.

6. 6.

   Discuss how delays in P-wave arrival could affect seismic safety alerts. What systems could mitigate this risk?

   Hint

   Think about advancements in technology to improve current systems.