USA, Boulder · 2018-10-30 · from the WORLDHUMMAP archive
A low hum in USA, Boulder
Very low frequency hum that is near constant, some rise and fall to the pitch I don't buy this is a physiological problem. I believe this is either VLF radio waves emitted by towers, satellite, or possibly a high power device like HAARP, precursory volcanic or seismic activity, or as some have suggested -- some sort of underground drilling or boring. It's not normal at all, and it is to the level of persistence to quite possibly drive a person crazy.
What they reported
First noticed: 2018
Pitch: Seems to be somewhere in the vicinity of 68-90Hz with lower variations in pitch
Loudest: Equal night and day
Where: Equal indoors and outdoors
Symptoms: Headache, Insomnia, Sense of vibration, This week i am really feeling in multiple areas of my body
Changes with weather: Not that I have noticed. I am curious though if our next snow fall since I am now paying attention to more environmental affects/causes
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both described a low hum
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This is a Hum report from Dr Glen MacPherson's World Hum Map, an open, worldwide record of people who hear an unexplained low-frequency hum. Reproduced with permission and with thanks; the project is at thehum.info. We remove anything on request. Location shown is approximate.
Anomaly