Very low, constant vibration sound, similar to car engine far away or even some household item. It changes the pitch from time to time. I hear it at night only, when there are no other sound…
both described a low hum · 204 km away
Lithuania, Kumzaiciai · 2021-01-21 · from the WORLDHUMMAP archive
Low frequency, like the car is idle around somewhere Ten years ago my father found a strange narrow hole in the ground behind our house. We tried to measure the depth of it and made a wooden plank of 10 meters, we put it down the hole and couldn't reach the bottom. We discussed with some seismic specialists and they said that it is very similar to man made holes for oil research. House is built in 80's and we don't know what happened there before it was built. There is no oil well near by our village.
What they reported
First noticed: 2019
Pitch: It's around 40 Hz
Loudest: During the night
Where: Indoors
Symptoms: Ear discomfort (pain, fullness, throbbing), Insomnia, Sense of vibration
Changes with weather: I haven't noticed it
What stood out: a low hum
Very low, constant vibration sound, similar to car engine far away or even some household item. It changes the pitch from time to time. I hear it at night only, when there are no other sound…
both described a low hum · 204 km away
Like distant diesel engine or a large industrial fan far away. The hum appeared very sudden, about 3 months ago. Since then I've heard it, but not everyday. Ear plugs doesn't help. Even tho…
both described a low hum · 447 km away
low-pitched idling engine from 100 or 200 meters away For clarification, no one in my family has been diagnosed as Autistic or Asperger. However, I believe that several people in my family, …
both described a low hum · 466 km away
An almost mechanical dull humming sound often punctuated with breaks of up to several minutes. Mostly noticed at night. I dreamily associate it with the sound of the earth rotating on its ax…
both described a low hum · 499 km away
Low frequency from around 30 to 60 Hz The sound started appearing after I was sick with severe stress. Some people from the authorities of Copenhagen have measured the sound in my apartment …
both described a low hum · 569 km away
Steady sinus huming infra sound 71 Hz. Seems the hum been gone for a day or two (?), then sudenly (2018-11-12, 9PM) as switched on with a button it come back, first experiend as very loud, b…
both described a low hum · 602 km away
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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.