An official with the United States Geological Survey says there is a chance of some aftershocks.
But speaking on AM800's the Morning Drive, Geophysicist Randy Baldwin says as of Friday morning, there have been none to report.
Thursday's earthquake was revised and raised to a 4.1 magnitude earthquake which was centred around Amherstburg.
"I looked at some of the statistics within 100 km or 60 miles and I found three quakes," says Baldwin. "They were in about mid-three range"
"There was a magnitude 4.2 that occurred in Kalamazoo, which is a little further away, and that happened in 2015 and looking at the records there was a magnitude 5 near Cleveland in 1986."
He says this earthquake is different from the ones on the west coast because those faults are well known and documented.
"This quake is about 5 miles deep and it would be a shallow crustal quake and it would be on a fault that probably formed in the basement rocks in some previous geological time period."
Baldwin says the local crustal faults are relatively unknown at the surface because they haven't moved in such a long time, but they do get reactivated every once in a while.
He says there is usually damage when an earthquake reaches a magnitude 5 or higher.
No damage was reported last night.
The Ministry of Natural Resources is asking those who felt the quake to report it online at http://www.earthquakescanada.nrcan.gc.ca/dyfi-lavr/known-connu-en.php?event=20180420.0001