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Originally posted by KingErik
Originally posted by FoxMulder91
Does anyone have any opinions of what could be causing this?
Yes, we all know they have been tunneling underground for decades. We're not supposed to know about it. It's a secret project to linkup all the major cities with underground arteries, to move military assets around without spy satellites being able to detect the movements by areal photography.
They are usually too deep for ground penetrating radar to pick up, so the sounds are all muffled, because of the great depth of the noise.
Occasionally, there's an air pocket above the tunnel, like the ones that create sink holes, and sometimes the sound resonates in these chambers, which act like amplifiers, and people above ground get to hear the tunneling machines.
When the machines pass through that spot, the noise stops. If you plot on a map all the locations people have heard the strange noises, and note the times they occurred, you can track the progress of the tunnel work.
edit on 5-6-2013 by KingErik because: (no reason given)
Originally posted by TheCrimsonGhost
And you know this how? Could you provide a source confirming underground tunnelling is the cause of this phenomenon?
I wouldn’t doubt it if they’ve completed a complete underground transit system that extends as far as Texas or even an entire network across the country considering the availability of nuclear powered tunnelers that actually melt the bedrock to reinforce the walls as it “digs” up to 5 miles in a single day. I neglected to mention that the tunneler diameter is large enough to fit two sets of train tracks and is operated by none other than the USAF.