Geological Survey of Canada scientist Garry Rogers said there are no reports of injuries or damages and said it occurred too far off land for there to be any.
The quake was the latest in a series of coastal tremors since Monday. Two quakes rattled the area Wednesday, both with magnitudes of around 5. There have been 18 quakes with a magnitude greater than 4 in the region this week.
"Rarely a day goes by where we don't have a earthquake. Once a year we have a swarm in the high fours, maybe a five. Once a decade we have a six," Rogers said.