The complete verbal phrase is "jogging more than a mile" and it is a gerund. Gerunds are words that are formed from verbs but act as nouns. Words that are formed from verbs but act as nouns are called verbals.
Furthermore, gerunds are a group of words, without a subject and a verb, which function as a part of speech. Therefore, gerunds, as you can see, consist of a gerund along with all its complements and mofiers.