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5.3 earthquake recorded off north Vancouver Island 'fairly common'

A earthquake measuring 5.3 struck off the north end of Vancouver Island Saturday afternoon. The temblor was recorded at 2:22 p.m., at a depth of 10 kilometres west of Port McNeill.
04232022-earthquake
A 5.3-magnitude earthquake was recorded off Vancouver Island on Saturday, April 23, 2022. EARTHQUAKES CANADA

A earthquake measuring 5.3 struck off the north end of Vancouver Island Saturday afternoon.

The temblor was recorded at 2:22 p.m., at a depth of 10 kilometres west of Port McNeill.

“A [magnitude-5] in this offshore area is fairly common,” said John Cassidy, a Natural Resources Canada earthquake seismologist and University of Victoria professor.

Fifty-seven quakes of magnitude-5 to -6 have been recorded within 100 kilometres of Saturday’s epicentre in the past 30 years, Cassidy said, along with seven larger than magnitude-6.

“So a couple each year,” he said.

Earthquakes such as this one serve as a reminder “of those active tectonic plates off our coast” and beneath our feet, he said.

“They move at about the same speed that our fingernails grow,” he said, “but over a lifetime, it is quite a distance — several metres.”