Wash hands with soap and water for 20 seconds.
Preheat the oven to 450°F.
In a small bowl, mix dry ingredients (garlic powder, oregano, cumin, coriander, thyme, and salt). Stir the mixture with a fork until all the ingredients are well combined.
Sprinkle the rub over the tenderloin with a dry hand, then rub the pork with the seasoning over both sides of the meat, pressing gently so the seasoning adheres well to the tenderloin.
Wash the counter and utensils that touched the raw meat. Wash hands with soap and water after handling raw meat.
In a large skillet over medium-high heat, add the olive oil and heat. Add the minced garlic and saute, stirring, for 1 minute.
Put tenderloin in the skillet and cook for about 10 minutes total, searing each side using tongs to turn the meat. Transfer meat to a roasting pan and bake for about 20 minutes. Using a meat thermometer, ensure the internal temperature of the tenderloin is 145°F before removing from the oven. Allow the pork to sit on the counter (rest) for 3 minutes. Cooking cuts of pork to an internal temperature of 145°F with a 3 minute rest period will result in a product that is safe, but still tender and juicy!
Slice and serve.