The most recent earthquake was a 2.4 magnitude quak which struck about seven kilometres northwest of Langford on March 5. (istock photo)

Series of small earthquakes no cause for concern, says expert

Earthquakes still a reminder for residents to be prepared

A University of Victoria professor says the handful of earthquakes that have hit the Greater Victoria area in the past few months are no cause for concern.

“These earthquakes are not a surprise in that we live in a tectonic plate boundary setting. We live on top of a subduction zone where the Pacific Plate is being subducted underneath North America,” said Edwin Nissen, an associate professor in the School of Earth and Ocean Sciences at the University of Victoria.

“The stress is building up and those eventually result in earthquakes. Those include rare, very large earthquakes, but also rather common earthquakes.”

RELATED: Small earthquake rattles southern Vancouver Island

In the past several weeks, three earthquakes of note have struck the West Coast. In January, a 7.9 magnitude earthquake struck off the Alaskan coast, triggering a tsunami warning for the coast of B.C., including parts of Greater Victoria. Just a few weeks later, a 2.8 magnitude earthquake was felt in Sidney and throughout Greater Victoria.

More recently on March 5, a 2.4 magnitude earthquake struck about seven kilometres northwest of Langford (just outside of downtown Victoria) at around 10:06 p.m., and was felt across the region.

There have also been several smaller quakes near Sooke and in the State of Washington.

Nissen said small earthquakes (ones that are roughly 2 to 3 magnitudes) may be occurring for a few reasons.

“All earthquakes on Vancouver Island occur because of the stresses caused by the eastward motion of the Pacific sea-floor relative to the North American plate,” he said. “The Pacific sea-floor is sliding underneath Vancouver Island. The largest earthquakes occur on the interface between the two plates, but the stresses also cause smaller earthquakes within the overriding plate (North America) as well as within the subducting Pacific plate.”

RELATED: Tsunami warning an ‘exercise in precaution’

While Nissen said the earthquakes are not an indication that the ‘Big One’ could happen anytime soon, they do serve as reminders to be prepared for emergencies in the future.

“In this part of the world, people should always be concerned about earthquakes and people should do the simple steps that can ensure that if and when a large earthquake strikes, your property, your life the lives of your loved ones are safe,” he said.

“I view them as a reminder to us all that we live in a setting where we can experience very large earthquakes and therefore we should make sure that we’re prepared.”

Households should have emergency plans and kits ready to grab at a moment’s notice. Emergency Management B.C. said kits should include ready-to-eat food and water, flashlights and batteries, a radio, seasonal clothing, medications, a small First-Aid kit, and whistle, among other things.


Like us on Facebook and follow us on Twitter

kendra.wong@goldstreamgazette.com

Just Posted

Crowdfunding page created for family of Comox Valley man killed in Peru

A GoFundMe page has been created for the family of Sebastian Woodroffe,… Continue reading

Comox Valley’s living wage sees four per cent increase from 2017 – report

Advocacy groups say the Valley’s inflation rate was nearly double the provincial average

Peru authorities order arrest of two suspects in Vancouver Island man’s killing

Peru’s attorney general has ordered the arrest of two suspects in the… Continue reading

Big Read: locked out of the woods

Vancouver Islanders struggle to balance back country public access with private land protection

VIDEO: B.C. man recognized for spinning basketball on toothbrush

Abbotsford man holds world record for longest duration of time of 60.5 seconds

Cat found stuffed in box in Dumpster in northeastern B.C.

Still alive, cat was found near Dawson Creek restrained with zip ties, legs forced behind neck

Fears prompt feds to establish BBQ brush safety standards

Wire-bristle safety fears prompt Ottawa to establish BBQ brush safety standards

Don’t forget about women left to sweep up shards of glass ceiling, W7 urges G7

When Prime Minister Justin Trudeau champions gender equality at the G7 he is being asked to raise the concerns of marginalized women

Canadian air travel industry fears pilot flight-time limits will go too far

Air carriers urge feds to slow down flight-time limits for sleepy pilots

Sky-high farmland prices ‘ruinous’ for B.C. agriculture: UFV ag professor

Fraser Valley-based Tom Baumann says $80K-per-acre in area threatens food security

B.C. man charged with litany of drug charges in cross-border smuggling operation

William Milton Barnes of Saanich faces multiple charges

Political heavyweights hit Washington in hunt for NAFTA deal

Officials from Prime Minister’s office, Foreign Affairs Minister Chrystia Freeland part of talks

Greenbelt Microgreens recall in B.C., Alberta, due to Listeria concerns

Canadian Food Inspection Agency says there have been no illnesses linked to the microgreens

Most Read