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Thread: Loud Bang Heard in Calgary Tuesday March 4

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    Default Loud Bang Heard in Calgary Tuesday March 4

    Anyone just hear / feel that loud bang / explosion North Calgary?

    House shook here in Coventry/ Harvest area - Reports all over Twitter/ Facebook right now...

    Update: http://globalnews.ca/news/1187727/hu...eighbourhoods/

    CALGARY- A huge boom startled northwest residents on Tuesday evening, sparking an investigation by emergency crews. The loud noise happened around 5 p.m. and could be felt in communities like Hidden Valley, Silver Springs, Ranchlands, Edgemont and Hawkwood. Calls flooded into 911, with people reporting a shockwave that shook their homes. Fire crews and police went out to investigate, but so far have not determined where the noise came from.
    Last edited by Kijho; 03-05-2014 at 04:41 PM.

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    Thorncliffe, I heard it, the house didn't shake though. Thought it came from the north.

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    Last edited by Cos; 12-28-2016 at 09:24 PM.
    Originally posted by adam c

    Line goes up, line goes down, line does squiggly things and fucks Alberta
    "The stone age didn't end because we ran out of stones"

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    I'm putting my money on a meteor since there is a huge area that heard it.

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    Apparently at the Lafarge plant some sort of explosion can happen. I remember reading about it in the summer. There was a super loud noise heard all over and they said it was routine.

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    I heard it in Saddleridge.

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    I heard a loud noise, not a bang, sounded like louder than usual plane taking off at the airport? House definitely did not shake. I am in Coventry.

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    Originally posted by chathamf
    Apparently at the Lafarge plant some sort of explosion can happen. I remember reading about it in the summer. There was a super loud noise heard all over and they said it was routine.
    Flare stacks. The can blow out from time to time. Operations keeps a small amount combustible vapourto them in the event that the plant needs to vent to flair. Sometimes this small(ish) flame blows out and the ignitor fails to relight it. Vapour collects, ignitor finally does its job, and BOOM.

    Totally normal and not a cause for concern.

    Source: I dont work at Lafarge but i have worked in a plant for a long time and have witnessed it first hand.

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    I don't think Lafarge has a flare, can't imagine what byproduct of making concrete you burn off.

    I'm going with routine blasting noise that got carried further due to the colder weather.
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    Originally posted by FraserB
    I don't think Lafarge has a flare, can't imagine what byproduct of making concrete you burn off.

    I'm going with routine blasting noise that got carried further due to the colder weather.
    Ahh yea i forgot about the controlled demo of rock...i suppose a concrete place would have a lot of rock.

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    Wasn't there something similar that happened not too long ago? Can't remember but I think It ended up coming from a gravel pit...

    edit: found it http://www.calgaryherald.com/Reporte...055/story.html

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    I actually heard it here in cochrane!

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    According to global news it was a "frost quake"

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    Last edited by Cos; 12-28-2016 at 09:23 PM.
    Originally posted by adam c

    Line goes up, line goes down, line does squiggly things and fucks Alberta
    "The stone age didn't end because we ran out of stones"

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    Wife and I heard it as well. Bizarre sound, not really a bang or thud, more of an airplane flying low type sound? Strange!
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    Originally posted by bignerd
    I heard a loud noise, not a bang, sounded like louder than usual plane taking off at the airport? House definitely did not shake. I am in Coventry.
    Is this the type of noise you heard?

    Last edited by revelations; 03-04-2014 at 07:58 PM.

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    Last edited by Cos; 12-20-2016 at 11:04 PM.
    Originally posted by adam c

    Line goes up, line goes down, line does squiggly things and fucks Alberta
    "The stone age didn't end because we ran out of stones"

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    There's frost-quake speculation but nothings confirmed yet.
    It was pretty damn loud, just search "#YYC" on twitter ..

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    If you folks heard a long rumble, its possible that its caused by EM harmonics from the atmosphere.

    The wife and I heard noise like this clip a few weeks past in the SE (not QUITE as loud though).


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    Last edited by Cos; 12-28-2016 at 09:23 PM.
    Originally posted by adam c

    Line goes up, line goes down, line does squiggly things and fucks Alberta
    "The stone age didn't end because we ran out of stones"

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