Oh, yeah, that logic is so totally flawed. Sure, it's just the volcano in yellowstone, sure. Naturally occuring ANYTHING doesn't generally have timings so precisely. And ya, how can THAT volcano be heard EVERYWHERE? But, you know, they'll just blame it on multiple volcanos around the world erupting all at the same time, and THAT'S now what the cause is. It's the easy way out, to just dismiss it all as being natural disasters causing the sounds.
But....... think about this.......
If a volcano causes the sounds that are being heard all over the world, then why oh why are these sounds NEW and not heard before, yet other volcanos have erupted in our lifetimes? Never before has a volcano made the sounds being heard around the world?
So then, it can't possibly be vocanos around the world causing these sounds. There is something else going on.
The big question would then have to be WHAT or WHO is causing it? Is it coming from someone here causing it? Is it coming from our atmosphere? Does it have to do with the sun? Or the solar flares/solar storms? What about this energy rift that's supposedly headed for us? (I'll place my money on that one if it turns out to be NOT haarp.)
Regardless of what's going on, it's growing. It's happening in more and more places around the world. More people are hearing it. There seems to be 2 types of sounds: The low rumble which sounds like it's from the ground; And... The air-based sound of what I call a sinking ship. 2 very distinct types of sound. Well, I guess I should say there's a 3rd type of sound: The explosive sound, like the one in clintonville. All over the world, different times of day, all year round. Some people are just starting to experience it, others have been experiencing it for much longer. I doubt there will EVER be a decent explaination for it. Everything so far has just been cover stories, either covering what they know is REALLY happening (doubtful), or the cover for the ignorance of not knowing what it is just to calm the public.