Chapter 4.3, Problem 1A

Use Figure 4.7 to answer the following questions

a Do most deep-focus earthquakes occur along the margin of the Atlantic or Pacific basin?

Most occur along the margin of the ____________basin

b Do the earthquakes that occur along the western margin of South America get deeper or shallower inland from the Pacific?

They get______ Inland from the Pacific

c Are most of the earthquakes along the western margin of North America deep or shallow focus?

Earthquakes along the western margin of North America have __ focus