When a flight makes an emergency landing do you get an additional segment?

July 3rd, 2014

I know this question is horrible, but here it is. When a plane makes an emergency landing, then takes off, and resumes its trip, does the passenger get an additional segment? Or, what happens if, after the emergency landing, the passenger needs to take a different plane to complete the destination. Are miles calculated based on the initial route, or based on the two legs?