(CNN) -- A 6.7-magnitude earthquake struck near Vancouver Island, British Columbia, on Friday afternoon, according to the U.S. Geological Survey.





The center of the earthquake was approximately 175 miles west of the city of Vancouver and nearly 50 miles underground.





Many people on Vancouver Island felt the quake, especially those in high-rises, which swayed back and forth, said John Cassidy of the Geological Survey in Victoria, British Columbia. He described the quake as originating 30 miles offshore.





The shaking lasted 10 to 20 seconds, Cassidy said, and there were no reports of damage or injuries Friday afternoon.





Earthquakes of such magnitude happen every decade or so, he said.





There was no immediate danger of a tsunami as a result of the earthquake, authorities at the Pacific Tsunami Warning Center said.





CNN's Deanna Proeller and Michael Martinez contributed to this report.
How far from the city of Vancouver was the earthquake where was the shaking? Who says there is no immediate danger is there any immediate danger? What sways on Vancouver Island? How long did the shaking last? Where is the center of the earthquake?
175 miles west near Vancouver Island, British Columbia, authorities at the Pacific Tsunami Warning Center no high-rises, 10 to 20 seconds, approximately 175 miles west of the city of Vancouver and nearly 50 miles underground.
question: How far from the city of Vancouver was the earthquake, answer: 175 miles west | question: where was the shaking?, answer: near Vancouver Island, British Columbia, | question: Who says there is no immediate danger, answer: authorities at the Pacific Tsunami Warning Center | question: is there any immediate danger?, answer: no | question: What sways on Vancouver Island?, answer: high-rises, | question: How long did the shaking last?, answer: 10 to 20 seconds, | question: Where is the center of the earthquake?, answer: approximately 175 miles west of the city of Vancouver and nearly 50 miles underground.