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The west end of Vancouver on January 19, 2023.DARRYL DYCK/The Canadian Press
On January 19, 2023, a 5.4 magnitude earthquake shook British Columbia’s South Coast, near Sechelt. The temblor brought震 a momentary jolt to residents, including Steve Stinchcombe, who was adjusting job postings for his company, Sechelt Glass, at the time. While the quake was brief, lasting only a couple of seconds, it was a stark reminder of the region’s vulnerability to seismic activity.
“If it was a longer, stronger one, then I would have had a mountain of glass sitting around my place,” Mr. Stinchcombe said, reflecting on his experience. Living on the Sunshine Coast, a short ferry ride northwest of Vancouver, he had never felt an earthquake during his 17 years in the area.
The Earthquake’s Impact
Natural Resources Canada reported that the earthquake began at approximately 1:26 p.m. and shook Vancouver, Victoria, and other BC cities, reaching as far north as Prince George. Despite the widespread shaking, frayed nerves were the only noticeable effect. Homes and businesses experienced minor rattling, but the damage remained cosmetic.
Preparation Efforts
Leonard Lee, a director for the Egmont/Pender Harbour regional district north of Sechelt, emphasized the importance of using this event to reinforce earthquake preparedness across the region’s 30,000 residents.
Experts predict that over the next four decades, British Columbia has a 10% chance of experiencing a magnitude-9 earthquake, similar in scale to the 2011 quake near Japan that triggered a devastating tsunami. Such an event could have catastrophic consequences for the region.
“People get concerned immediately after the event but – shortly after – it kind of wears off,” Mr. Lee said. He pointed out that the province’s warning systems successfully alerted his cellphone of the quake’s occurrence, instructing him to remain in a safe place in case of aftershocks.
For residents, being prepared means putting together “go kits” containing essential items for potential evacuation. Local officials, including Mr. Lee, have also been focusing on enhancing the region’s tap water system.
Mr. Lee’s team is working on a project to backup the main water reservoirs with wells, which could serve roughly 75% of the residents. He anticipates the completion of this project by 2027.
Metro Vancouver’s Response
Linda Buchanan, mayor of the City of North Vancouver, shared her experience on social media. The earthquake was felt on the 28th floor of Metro Van headquarters in Burnaby.
“I was on the 28th floor of Metro Van when the earthquake happened. Heard a loud boom and felt the tower shake. It was frightening,” she expressed on X.
She also called attention to ongoing discussions at Metro Van about cutting earthquake monitoring system research.
“It should come as a stark reminder of the role Metro has and the unintended consequences of slashing programs without a proper review,” Mayor Buchanan stated.
Scientific Research in Earthquake Resilience
Sheri Molnar, an Earth sciences professor at the University of Western Ontario, leads the Metro Vancouver seismic microzonation mapping project, which began in 2017.
This research produces local maps to predict how earthquake shaking might vary across different geological conditions, highlighting vulnerabilities like landslides and liquefaction.
“It’s this kind of earthquake that totally gets the conversation going, because depending on the geology, you felt it different from somebody else – the intensity of the shaking, the frequency, the vibrations and the duration all vary depending on the ground you are standing on,” Professor Molnar explained.
Firsthand Accounts
Commercial fisherman David Mackay was in his Pender Harbour workshop, about 30 km from the epicenter, when the shaking started.
“The whole building shook,” Mackay reported. “It sounded like a Mack truck was about to drive through the shop. The walls were all shaking. I haven’t felt one quite like that before.”
Conclusion
The January 19 earthquake serves as a sobering reminder of the seismic risks faced by British Columbia’s South Coast. Local residents and officials have taken steps to prepare, emphasizing the importance of earthquake research, infrastructure improvements, and individual readiness.
While the damage from this 5.4 magnitude event was minimal, the experience highlights the potential for more severe seismic activity in the future. Continued effort and investment are crucial to ensuring regional resilience.
With a report from Patrick White and The Canadian Press
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