Question

A person moves from Canada to the United States to escape the cold weather.
Is this interior migration or immigration?

Answer 1

The situation you've described would be considered immigration. Immigration refers to the act of moving to a different country with the intention of residing there, which applies in this case as the person is moving from Canada (one country) to the United States (another country). Interior migration, on the other hand, typically refers to the movement of people within the same country, such as moving from one province or state to another.