Answer:
the edge of the continent
Explanation:
most of the earthquakes occured in the plate junctions
and plate junctions is on the edge of continent
The goal was to tell the rest of the world (mainly the Europeans) that the United States has official borders and that they could no longer colonize in the borders.
It also told the Europeans that the U.S would not interfere with their colonies or Europe itself.
Iran Contra Affair would be your answer
One of the main ways in which economic opportunity divided urban and rural dwellers is that those who could afford to live in the suburbs usually chose to do so, while low-income people who had to work lesser-paying jobs were usually confined to the cities.
