An average person burns about 100 to 200 calories. However it could be more under certain circumstances. It depends on your weight, how fast you are running, how much effort is required, as well as where you are running, and whether you are running on a hard surface, a soft surface, and whether you are running on flat ground or an incline.
For more information about how to do cardio running (or any cardio) correctly, for
maximum calorie burning effect, see the page link, further down this page, listed under Related Questions.