Humming Noise Reported in Greenfield, IN
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Original Report Details
Low frequency humming noise late night early morning
My dog wakes me up to go outside often between 4 AM and 7 AM. I have noticed a humming noise when outside at this time frame. I do not hear it during the day. At first I thoughts it was the highway that is several miles away but, the other morning my spouse got up at the same time and noticed it too. They were inside the house and could hear it, I had them come to the door and listen , they said it didn’t sound like the highway to them ,It’s more of an alternating dual tone low thrumming noise. We just moved to the area in September.
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