An open record of things people cannot explain

Netherlands, Maastricht · 2018-02-25 · from the WORLDHUMMAP archive

A low hum in Netherlands, Maastricht

continuous low-frequency sound. First I thought it was the neighboor's ventilation or so but then cannot hear it if I press my ear on the wall. I noticed I can mostly hear it from the right ear. Sounds like there an airplane smw far ready to take off. Or a washing machine working smw at a distance.

What they reported

First noticed: 2018

Pitch: 40Hz triangle

Loudest: During the night

Where: Indoors

Symptoms: Insomnia

Changes with weather: not sure

What stood out: a low hum

 

Others who described something like this

2018-02-20

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2018-01-29

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2018-12-29

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2020-01-29

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2022-12-10

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both described a low hum · 97 km away

2019-05-28

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the accounts read alike, found by meaning rather than by shared details

2018-03-24

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

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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.