23.3. Mechanics of Elastic Rebound

Try these first

1. 1.

   What is the term for the force applied per unit area on a material?

   Hint

   Think about the force that causes deformation.

2. 2.

   What does elastic deformation mean?

   Hint

   Consider a rubber band.

3. 3.

   What is the relationship between stress and strain in elastic deformation?

   • Indirect
   • Proportional
   • Inverse

   Hint

   Think about how materials behave when you gently compress them.

4. 4.

   True or False: Fault displacement remains constant at all distances from the fault.

   • True
   • False

   Hint

   Consider how waves spread out from the epicenter.

5. 5.

   A rock mass has a yield stress of 50 MPa and is subjected to a strain of 0.1. Calculate the elastic potential energy stored per unit volume.

   Hint

   Make sure to convert MPa into consistent units if necessary.

6. 6.

   Discuss the implications of sudden fault slip on human structures around earthquake zones.

   Hint

   Think about how energy release can create shockwaves.