http://www.oceannetworks.ca/

Earthquake early-warning sensors installed off coast of B.C.

The first-of-its kind warning sensors are developed by Ocean Networks Canada

An earthquake early-warning system tested off British Columbia’s coast could give residents anywhere from 20 seconds to two minutes to prepare before a quake.

The first-of-its kind warning sensors developed by Ocean Networks Canada is installed along the Cascadia subduction zone and when fully operating next March will be able to estimate location and magnitude of a megathrust earthquake.

RELATED: Great British Columbia ShakeOut earthquake drill reminder

Greig Bethel of Ocean Networks Canada, an initiative of the University of Victoria, says the system is active even as more sensors are being installed in the area to increase accuracy.

A simulated exercise was conducted Thursday in Vancouver on the 19-kilometre Canada Line stretch of the SkyTrain system, giving transit operators a chance to slow down trains and hold them at stations.

British Columbia is located on the Pacific Ring of Fire, an active seismic zone where thousands of mostly small earthquakes are recorded annually by sensors in the province.

Most of the quakes happen near the Cascadia subduction zone, an area where the Juan de Fuca and North American tectonic plates converge, stretching from Vancouver Island to northern California.

“Ocean Networks Canada’s earthquake early-warning technology promises a new era of earthquake preparedness that will enhance the safety of both riders and workers on the Canada Line,” says Canada Line general manager Ron Powell.

A news release from the network says to maximize warning time, it will focus on setting sensors as close to the Cascadia subduction zone as possible and on minimizing delays in data processing, communication, and delivery of warnings.

RELATED:Earth still moving in Old Fort, B.C., but not above homes: geologists

Global Positioning System receivers will also be located with the seismic sensors to further refine the magnitude.

Earthquakes release energy that travels through the Earth as seismic waves in two forms — secondary and primary waves.

The primary waves travel faster but the secondary waves are the cause of severe damage and ground shaking.

However, the sensors would detect primary waves to deliver alerts before the arrival of the secondary waves.

“The detection of an earthquake by many sensors can provide rapid estimates of the location and magnitude of an earthquake as it occurs,” the release says. “This information can be used to determine the estimated arrival time and intensity of ground shaking at specific locations across a region, allowing protective actions to take place before the shaking hits.”

The early-warning system can help reduce deaths, injuries and property losses, trigger trains to slow down, stop bridge and tunnel traffic, open bay doors at fire and ambulance halls, halt landings for incoming air traffic, and even allow surgeons to stop delicate procedures, the release says.

The Canadian Press

Like us on Facebook and follow us on Twitter.

Get local stories you won't find anywhere else right to your inbox.
Sign up here

Just Posted

Felix Townsin, shown here with his sister, Lexi, who died on Oct. 19, 2019. Felix is a big part of a family initiative aimed at finding a cure for Blau Syndrome. (Photo contributed by the Townsin family)
Quest to cure Blau syndrome a family affair

John Stubbs student produces film for late little sister Lexi

An untitled Emily Carr painting of Finlayson Point was donated to the Art Gallery of Greater Victoria by brothers Ian and Andrew Burchett. The painting had been in their family for several decades. (Courtesy of the Art Gallery of Greater Victoria)
Newly public Emily Carr painting depicts well-known Victoria view

Painting among several donated to Art Gallery of Greater Victoria

An incident on Sooke Road is slowing traffic Wednesday evening. (Courtesy of Mona Hazeldine)
Sooke Road incident snarls evening traffic

Witnesses report two-vehicle collision

Janet Austin, lieutenant governor of B.C., was presented with the first poppy of the Royal Canadian Legion’s 2020 Poppy Campaign on Wednesday. (Kendra Crighton/News Staff)
PHOTOS: B.C. Lieutenant Governor receives first poppy to kick off 2020 campaign

Janet Austin ‘honour and a privileged’ to receive the poppy

The street value of the more than one-and-a-quarter kilograms of cocaine seized by VicPD officers was over $150,000. (Courtesy of VicPD)
Victoria police seize fentanyl, more than $150,000-worth of cocaine

Charges laid against two Victoria men in months-long investigation

Provincial health officer Dr. Bonnie Henry updates the COVID-19 situation, B.C. legislature, Oct. 26, 2020. (B.C. government)
B.C.’s COVID-19 case count jumps by 287, another senior home outbreak

Two more deaths recorded, community outbreak in Okanagan

Anyone with information on any of these individuals is asked to call 1-800-222-TIPS (8477) or visit the website victoriacrimestoppers.ca for more information.
Greater Victoria Crime Stoppers wanted list for the week of Oct. 27

Greater Victoria Crime Stoppers is seeking the public’s help in locating the… Continue reading

MMFN First Nation has said that it will restrict access to portion of Highway 28 that passes through the Nation’s land until a road use agreement is reached. (Black Press file photo)
Vancouver Island First Nation blocks highway access to logging trucks in Gold River

Mowachaht/Muchalaht First Nation restricting access for Western Forest Products pending road deal

100 Mile Conservation officer Joel Kline gingerly holds an injured but very much alive bald eagle after extracting him from a motorist’s minivan. (Photo submitted)
Rescued bald eagle that came to life in B.C. man’s car had lead poisoning

Bird is on medication and recovering in rehab centre

The B.C. Centre for Disease control is telling people to keep an eye out for the poisonous death cap mushroom, which thrives in fall weather conditions. (Paul Kroeger/BCCDC)
Highly poisonous death cap mushroom discovered in Comox

This marks first discovery on Vancouver Island outside Greater Victoria area

Cowichan Search and Rescue set up near the Silver Bridge in Duncan on Wednesday morning, Oct. 28, 2020 to rescue a dog from the Cowichan River. (Citizen file)
Cowichan Search and Rescue save dog from icy Cowichan River

Search and Rescue’s swiftwater team was called in

Premier-elect John Horgan and cabinet ministers are sworn in for the first time at Government House in Victoria, July 18, 2017. (Arnold Lim/Black Press)
Pandemic payments have to wait for B.C. vote count, swearing-in

Small businesses advised to apply even if they don’t qualify

A raccoon paid a visit to a Toronto Tim Hortons on Oct. 22, 2020. (shecallsmedrew/Twitter)
Who are you calling a trash panda? Raccoon takes a shift at Toronto Tim Hortons

Tim Hortons said animal control was called as soon they saw the surprise visitor

Most Read