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
EXCLUSIVE | Gay man taking Canadian government to court, says sperm donation restrictions make him feel like a 'second-class citizen'
A gay man is taking the federal government to court, challenging the constitutionality of a policy restricting gay and bisexual men from donating to sperm banks in Canada, CTV News has learned.

Dominic Barton says he had nothing to do with federal contracts awarded to McKinsey
Dominic Barton, the former global managing director of McKinsey & Company, says he had no involvement in federal contracts awarded to the firm in recent years.
Quebec woman shocked to find stolen Audi driven through Ontario mall in 'insane' robbery
A Quebec woman said she was very surprised to find her stolen Audi had been used in what’s being described as an “absolutely insane” Ontario mall robbery.
Shubenacadie Sam sees shadow, predicts six more weeks of winter
Nova Scotia's Shubenacadie Sam has seen her shadow, predicting six more weeks of winter.
Former CBC journalist dies after random attack on Toronto street, new suspect photo released
A long-time CBC radio producer who was the victim of a random assault in Toronto last week has died, the public broadcaster confirms.
Militant who killed 101 at Pakistan mosque wore uniform
A suicide bomber who killed 101 people at a mosque in northwest Pakistan this week had disguised himself in a police uniform and did not raise suspicion among guards, the provincial police chief said on Thursday.
New opera by Haitian-Canadian composer puts Black performers, stories in spotlight
When the opera 'La Flambeau' premieres next week in Montreal, Black performers will be front and centre in an artistic medium where they have historically been under-represented.
Ukrainian rescuers dig through rubble as Russia strikes civilian target
Top European Union officials arrived in Kyiv on Thursday for talks with Ukrainian officials as rescue crews dug through the rubble of an apartment building in eastern Ukraine struck by a Russian missile, killing at least three people and wounding about 20 others.
After Tyre Nichols funeral, Biden faces pressure on policing
In Washington progress on police brutality appears difficult, if not unlikely. Bipartisan efforts to reach an agreement on policing legislation stalled more than a year ago, and President Joe Biden ended up instead signing an executive order named for George Floyd, whose murder at the hands of Minneapolis police set off nationwide protests nearly three years ago.