Could be moles, mouses, rats and other pests. I suggest putting a brick on that, blocking it, and destroying the tunnel.
If you see more holes. maybe consider using some pest control methods.
I have tons of moles in my yard, so based on my experience I doubt it's a mole. Tell-tale signs of moles are raised earth in the yard, as they tunnel thru looking for grubs and stuff to eat.
A little trivia: Moles are not considered rodents, rather they are classified as insectivores. That's why I leave them be and see them more as a beneficial animal...they also aerate the soil
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