Earthquakes rattle northern Alberta, no initial reports of damage: federal agency
A series of earthquakes and aftershocks were reported in northern Alberta Tuesday evening, with some saying the shakes were felt in Edmonton.
Earthquakes Canada issued an alert for a 5.2-magnitude quake at 4:45 p.m. at a depth of four kilometres.
Another was issued for a 6.0 magnitude at 5:55 p.m. at a depth of two kilometres, but the magnitude was later adjusted to 5.8.
At 7:45 p.m., Earthquakes Canada confirmed both events were earthquakes.
The quakes occurred near Reno, Alta., which is about 40 kilometres south of Peace River.
The cause of the quakes was unknown as of Tuesday evening. Earthquakes can occur in Alberta both naturally and as the result of human activity.
The Earthquakes Canada representative said several aftershocks had been recorded as well.
According to the agency, the 5.8-magnitude quake is one of the largest recorded in Alberta and was lightly felt in eastern British Columbia and western Alberta. It is potentially the largest earthquake the province has experienced; according to the Alberta Geological Survey, the largest documented earthquake in Alberta occured about 100 kilometres northwest of Grande Prairie in April 2001 and registered at a 5.4 local magnitude.
There is some discrepancy in the size of Tuesday's largest quake; the United States Geological Survey has recorded it as a 5.3 magnitude.
No damage had been reported to the agency yet.
MORE EVENTS RECORDED OVERNIGHT
Three more 4.0-magnitude quakes were recorded by the agency later Tuesday evening and early Wednesday morning: at 11:16 p.m., at 11:33 p.m., and at 5.46 a.m.
All were recorded in the same area northeast of Reno.
Reno is located roughly 450 kilometres northwest of Edmonton.
CTVNews.ca Top Stories
Defence minister says Canada supports U.S. downing of Chinese balloon
The federal defence Minister says Canada 'unequivocally supports' the United States government's decision to shoot down a high-altitude surveillance balloon that was suspected of spying for China, noting the balloon violated Canadian airspace.

U.S. downs Chinese balloon, drawing a threat from China
The U.S. military on Saturday shot down a suspected Chinese spy balloon off the Carolina coast after it traversed sensitive military sites across North America. China insisted the flyover was an accident involving a civilian aircraft and threatened repercussions.
'It's devastating': Homeless Canadians at risk as Eastern Canada endures extreme cold, advocates say
As the majority of Eastern Canada stays indoors during an extreme cold weather alert, homeless shelters are struggling to keep up with the demand from unhoused people as temperatures continue to drop.
Extreme cold can bring frostbite and hypothermia. Here are the symptoms to watch for
Canadians will continue to bundle up in the country's east this weekend as a recent bout of extreme cold persists in much of Quebec and the Atlantic provinces. CTVNews.ca looks at the signs and symptoms for frostbite and hypothermia to watch for if exposed to extreme cold.
China says it strongly opposes U.S. move to shoot down balloon
China's foreign ministry said on Sunday that it expressed strong dissatisfaction and opposition towards the United States' use of force to attack its airship.
Poor oral health could affect the brain later in life: early study
An early study has shown keeping your gums and teeth healthy may have added benefits for your brain health.
Federal government asking RCMP to ban use of sponge rounds, CS gas for crowd control
The federal government says it wants the RCMP to ban the use of two crowd-control tools that forces across the country say they have in their arsenals: sponge rounds and CS gas.
Extremely cold temperatures prolong cold weather alerts for much of Eastern Canada
A cold snap that triggered Environment Canada alerts involving eight provinces and territories extended into a second day on Saturday, shattering several past temperature records and leaving thousands of customers in Atlantic Canada without power.
Toronto named as host city for 2024 NHL all-star game
NHL commissioner Gary Bettman announced Saturday the league's 2024 showcase will be played in Toronto for the ninth time.