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These sounds all seem to be very similar all over the world.
Sounds like an out of this world tunneling machine to me. Highly technologically advanced mole men expanding their empire maybe?
Originally posted by johnhenrysteel
I have been hearing strange sounds on the coast by Santa Monica and Venice beach in the last year or so. Accompanied by a larger presence of military looking helicopters. I can't help but wonder if something is going on around there. And the more i research the noise the more convinced i become.