23.12. Elastic Rebound and Tsunamigenic Earthquakes

Try these first

1. 1.

   What is a tsunamigenic earthquake?

   Hint

   Think about the types of earthquakes that affect the ocean.

2. 2.

   What does elastic rebound explain?

   Hint

   Consider how rubber bands work.

3. 3.

   What is the main cause of tsunamis during earthquakes?

   • Horizontal movement
   • Vertical displacement
   • Plate divergence

   Hint

   Consider how the ocean floor is affected by tectonic activity.

4. 4.

   True or False: All earthquakes are capable of generating tsunamis.

   • True
   • False

   Hint

   Remember which earthquakes affect the ocean floor.

5. 5.

   Discuss the factors that influence the magnitude of the tsunami generated by a megathrust earthquake.

   Hint

   Consider how each factor contributes to the overall energy released.

6. 6.

   Evaluate the effectiveness of current tsunami warning systems based on the understanding of elastic rebound.

   Hint

   Think about how rapid monitoring can contribute to preparedness.