Problem 1
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 rum 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
Why is it possible to issue a tsunami warning but not a warning for an impending earthquake? Describe a scenario in which a tsunami warning would be of little value.