OMG Google Trends for STRANGE SOUNDS WAY WAY UP in the Past Week!

I apologize for jumping on your comment but I wasted my night looking into this.
I looked through the user's youtube channels and their corresponding links and one thing many have in common is they are all end of the world/collapse/conspiracy/ufo/tinfoil hat related.
Here is a description of what the user's who have posted videos of the sound also have linked/posted/interests(numbers correspond with OP's list)
Manitoba User makes music under the name "Apocalipz"
Dawson Creek User's channel's dont_use_this video is iiO - Rapture; all uploaded videos are related to the Rapture/Lord
Alberta Links to this user as original uploader, other videos are disaster related/Jesus/Redeemer.
Kiev, User uploaded a bunch of UFO, space anomaly videos.
news report User's channel says "ALIEN", filled with conspiracy stuff and Glen Beck.
Denmark Only two videos uploaded, one of the sound and one of a cat, on the same day and the day the account was created.
Montreal Nothing really noteworthy, an "as seen on" link to a project avalon forum but there is a server error or something.
Virginia Worst channel background ever in history. Many videos of conspiracy/"end of the world sign" type events. Links to creepy ass Glen Beck propaganda/fear mongering blog.
Colorado User uploads are all hurricane/weather and earthquake videos. 400 of them. Playlist is filled with religious stuff. Links to original uploader of video. user uploaded a passive-agressive end of the world motivational video 2 months before he uploaded the sound video.
Costa Rica ALIENSSS EVERYWHERE and galaxy background.
Czech Republic Username danky666 (the devil's number). Tons of videos of home-made weird ass electronic gizmos including a time machine.
[Mexico]Same user as 10
Russia HAARP, Illuminati, closed tab.
Belarus Nothing interesting. Saw the word elephant.
France Most interesting one yet. Name: skywatcher06. The "About Me" section:
You still don't understand what you're dealing with, do you? They're here, watching us, maybe someday we will grow up ... then they'll think about telling us the trouth.
"I think about how quickly our differences worldwide would vanish if we were facing an alien threat from outside this world. And I ask you, does not this threat alread exsist?" --President Ronald Reagen UN address
Profile has a link to Shitty Alien Website Thing
Norway Channel has tons of amateur radio videos.
Brazil Not much in here.
My conclusion: Either the aliens only choose the lunatics or a doomsday movie viral marketing very likely relating to aliens.
Edit: Changed numbered links to the locations in OP's post.

Thank you for giving the most plausible explanation so far.

Thank you both for giving the most lame explanation to date.

Queen much?

I find it VERY COINCIDENTAL that ALMOST all the posts that are "Trying" (Quite Unsuccessfully) to debunk or downplay this are ANONYMOUS COWARDS.

Nothing like muddying the water eh?

So, it's wind... it's viral marketing... It's nothing... It's been around forever... it's haarp... it's cern... it's global warming... It's a hoax...

Did I miss anything?

Hey, ya know what it is?

It's a sound that resembles a trumpet coming from the sky that nobody has been able to explain.

No it doesn't. Religious nut job.

Nothing like muddying the water eh?

So, it's wind... it's viral marketing... It's nothing... It's been around forever... it's haarp... it's cern... it's global warming... It's a hoax...

Did I miss anything?

Hey, ya know what it is?

It's a sound that resembles a trumpet coming from the sky that nobody has been able to explain.

Just like the birds dying tactic...

It's fireworks... it's poison... it's cold... it's ect...

I have been a little gasy lately

have you and similiar folks have nothing better to do with your GOD MINDs than this? This is awfully low ego mind here, grow up. Its NOT funny to others.

Same BS sounds came from the Russians that bore a hole into center of Earth.

LMAO.... Sheeple on both sides.

I'd like to hear it one time. Like, really hear it, not these crappy youtube videos. Its one thing to hear anything in a vid, and quite another to hear the real thing. This is one of the few mystery's that I actually believe there is something to, simply because of the amount of people hearing it, and the various locations from all over the world hearing it. Does that make it supernatural, HELL NO! It could be a very natural, logical phenomenon, or it could be the Yellowstone caldera about to go supernova on us, who knows...I think it needs more study, for sure.

tunnel boring machines usually nuclear powered
they use vibration to bore tunnels

you'll know when they're under your house

you'll hear this high pitched whine and feel low frequency vibrations, you might even get a headache or a migraine

Maybe they are testing the audio aspect of Project blue beam?

Nothing like muddying the water eh?

So, it's wind... it's viral marketing... It's nothing... It's been around forever... it's haarp... it's cern... it's global warming... It's a hoax...

Did I miss anything?

Hey, ya know what it is?

It's a sound that resembles a trumpet coming from the sky that nobody has been able to explain.

Just like the birds dying tactic...

It's fireworks... it's poison... it's cold... it's ect...

Maybe they are testing the audio aspect of Project blue beam?

Your arguement is fallacious.

The video of the ballgame could be wind from a storm spunn off of Hurricane Irene. The game was delayed that day due to that storm.

It's possible that video is being used in a viral marketing campaign or massive psy-ops .
Did you not write a book ?

I think you are on to something here. I noticed that alot of these areas that are hearing the hum are land locked, and not near major tetonic plate conjunctions. Any thoughts???

At last, someone with a logical post. People have such short memories, it seems.

You simply can not censor a global event. "Global event" as in how some people in here pronounce it to be.

Let's take Twitter for example. If a sound would be heard in City X, wouldn't everybody in City X be twittering about it? Now let's say Twitter censors all those tweets about the sounds, wouldn't everybody know Twitter is censoring it? Wouldn't everybody think they hidding something? Wouldn't that make the fuss only bigger?

Yet again, we are talking about a major event here, if it really happens, why does noone talk about? And again, i'm talking about normal people, not the mass media.