Germany Rhine Main area 50 km all around Frankfurt Zip 63... · 2020-11-05 · from the WORLDHUMMAP archive
consistent low frequency rumbling all around. Measured frequency is very low noise starting at - 25dB with changing frequencies between 8Hz to 16Hz. Body feeling is like fast trembling on a cold winter day or lying on a metal plate, that vibrates. So I hear it and I feel it It is now 6 am and the rumbling noise is still feelable. In a Radius of 40km there is a windpark (Groß-Umstadt) and I read, that this special noise could be heard in a radius up to 90km. But that does not explain the 21kHz sound that feels like a Tinnitus
What they reported
First noticed: 2020
Pitch: Like I have written above below 20 Hz, so my headphones cannot produce the sound
Loudest: During the night
Where: Indoors
Symptoms: Insomnia, Sense of vibration
Changes with weather: no change
What stood out: a low humrumbling
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the accounts read alike, found by meaning rather than by shared details
The sound i hear is like a low grumble. Kind of like an engine, but not an engine or even like when there is an earthquake and you hear the earth moving. It├»┬┐┬╜s weird to describe, but sor…
the accounts read alike, found by meaning rather than by shared details
An endless, distant low rumbling like the sound of a truck engine, but much quieter. It├»┬┐┬╜s not terrifyingly loud but I can├»┬┐┬╜t help but notice it. When I├»┬┐┬╜m focused on something, …
the accounts read alike, found by meaning rather than by shared details
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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