Mexico is a part of North America [1]. What is less obvious is whether Guatemala, Belize, Nicaragua, etc, would fall into N or S America. Central America is a region, like the Middle East, but is not its own continent. Central America is a part of North America [2]. Nathan made a good point that the United Nations considers Mexico a part of Central America [3]. I wonder why [4].
Sear each side, flipping minimally. It should not take long for a crisp brown crust to form. Depending on the heat of your pan, it should take about 2-4 minutes (or less) for each side to finish cooking. When the first side is done, flip your steak and cook the second side for about as long.
1 Close oven and sear the steaks for 3 minutes on one side, turn and sear the opposite side for 3 minutes. DO NOT USE A FORK TO TURN STEAKS!  Once seared, set the oven to 500F and cook using this Time Chart. Turn steaks half way through the remaining cooking time.