Collado Villalba 28400 · 2019-05-19 · from the WORLDHUMMAP archive
It's similar to the sound of slowing down as if when arriving to the station, or at least, I think so as I live close to the local train station. It's a deep sound and it's always following the same pattern, as if it were a beating engine. There are days in which this sound is very annoying and it doesn't help me using earbutts. An important missing question is: Have you been able to record the noise? (Not yet in my case).
What they reported
First noticed: 2011
Pitch: 40 hertz
Loudest: During the night
Where: Indoors
Symptoms: Ear discomfort (pain, fullness, throbbing), Headache, Insomnia, Sense of vibration, Anxiety
Changes with weather: I think it worsens when atmospheric pressure diminishes or lowers down.
The sound seems to come from the sky, an intense vibration. Similar to the frequencies emitted by a diesel engine of a car with a slight acceleration or a larger engine at slow speed. Someti…
the accounts read alike, found by meaning rather than by shared details
Very low frequency hum, like the sound a diesel vehicle would do from a distance before getting too close, but constant all the time. I can hear the noise better when it is completely silen…
the accounts read alike, found by meaning rather than by shared details
Humming noise like a diesel engine in some distance Sound starts around 1am and always stops about 2 hrs before sunrise. Tried to locate the sound and went to the direction (sometimes up to …
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