Problem 1
Briefly describe the concept of elastic rebound. Develop an analogy other than a rubber band to illustrate this concept.
Problem 4
You go for a jog on a beach and choose to run near the water where the sand is well packed and solid under your feet. With each step, you notice that your footprint quickly fills with water, but not water coming in from the ocean. What is this water's source? For what earthquake-related hazard is this phenomenon a good analogy?
Problem 5
Explain, in your own words, why a tsunami often causes a rapid withdrawal of water from beaches before the first surge.
Problem 6
Why is it possible to issue a tsunami warning, but not provide a warning for an earthquake?
Problem 8
Describe the two different ways that Earth's layers are defined.
Problem 9
S waves temporarily change the shape of the material that transmits them. Can you identify a place in Earth's interior that would not transmit S waves? Why?
Problem 10
Based on the properties of Earth's layers, and the mode of travel of body waves, predict where in Earth's interior waves should (a) travel fastest, and (b) travel slowest. Is there an exception for these generalities? Explain your answers.
