Thats the exact sound in all the other videos, happening world wide..it gives me the creeps.

It appears that the sound is coming from above, and not the earth.

that is the freakiest sound I ever heard, what the heck was that. So scary.

i'm in alberta, looks like muskeg, so about 4,5 hrs north, i don't want to run into what makes that noise, weirded out...

wow!! similar noises heard all over the earth. plate techtonics? HAARP? demons?!?, lol.

Wow, it sure catches your attention when it is close to home!  It is surprising because we always think it won't happen here.  I am in B.C., the next province to the West of Alberta and where I live we don't have earthquakes or tornados.  The only thing we are subject to here is wildfire.  I realize this is probably not a natural thing, but I guess I feel so insulated from disasters that to hear of this odd phenomena happening next door is an attention getter.

Leslie in Canada

There is a theory it's the sound of gravity waves of the pull of a heavy mass object tugging on Earth! We should see if a earthquake occurs near this area in the next few days!

Okay, don't think I'm nutty, but what if it IS Bigfoot?  Now hear me out.  I read about this a long time ago, but there is as much "eveidence" to support Bigfoot as there is to support the existance of aliens.  But we all know aliens are fallen angels, very evil.  What if Bigfoot is a Nephelim?  He is a giant; he does strike fear into those that have seen him, yet he cannot be captured.  Is it because he is also a supernatural being that roams the woods?  Maybe he is out there howling because he knows his time is short too!

watcher for life, I agree. It sounds the same as what other's have posted. I have listened several times, and it's creepy. Listen right at 1:10, sounds like a shofar.