An open record of things people cannot explain

Belgium, South of Antwerp · 2019-04-24 · from the WORLDHUMMAP archive

Rumbling in Belgium, South of Antwerp

A very deep rumble. Not a 'clean tone', but varying in amplitude and frequency within the very low range. When very silent (no traffic, no neighbours running around) it becomes visible on my recently installed iPhone app 'Signal Sound X', as a irregular wave, sometimes multiple waves, that are below the normal ambient suburban sound. Sometimes the sound resonates in my ear, as if it is a harmonic, creating and irritating feeling deep in my ear. I also suffer from mild tinnitus for many decades after the one to many rock concert, but that is a auto generated high pitched sound. The ruble just stopped now, after weeks on end. I hoped to find a possible pattern here, on your site. Mean while i'll enjoy the silence. :-) While it lasts.... I'd like to add that i cut the electricity mains to make sure it was no appliance. I also went from cellar to attic and can barely notice a difference, when it's on.

What they reported

First noticed: 2017

Pitch: I already tried to duplicate the sound with this online tool ! But it does not give the same very low rumble. It seems lower that the 39Hz that can be generated by the speakers/soundcard. It's also more complex that a single wave.

Loudest: Equal night and day

Where: Indoors

Symptoms: Ear discomfort (pain, fullness, throbbing)

Changes with weather: i don't know

What stood out: rumbling

 

Others who described something like this

2006-09-26

On September 26, 2006, in LANDRECIES at around 9:30 PM, a witness, who is watching television with her children, suddenly hears a loud noise that makes the house shake and sees a light outsi

both described rumbling · 123 km away

2019-09-29

A constant low-pitched rumbling sound. Variously louder and quieter, but always present. Sounds like a generator or some other engine sound, but totally unable to trace a source - it seems t

both described rumbling · 407 km away

1991-09---

Recent testimony (31/07/2009) of an old observation (September 1990 or 1991, the witness no longer remembers exactly which date). A witness reports having observed at dusk the slow movement

both described rumbling · 281 km away

2010-08-29

A witness reports an observation made on Sunday, August 29, 2010, around 12:20 a.m. From the first floor of his home, he observes about thirty "shuttles" flying below the cloud layer. All mo

both described rumbling · 291 km away

2019-05-15

Low frequency, rumbling hum, almost sounds like the noise of a large distant war plane I first noticed this sound when I was about half way through pregnancy with my first (and only) child.

both described rumbling · 456 km away

2019-07-26

Low frequency rumbling sounds like it is machinery running in the distance or at first I thought it must be a tumble dryer or similar running in another house. It started about a month ago (

both described rumbling · 479 km away

2018-11-30

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

2024-01-06

It's similar to the sound of my fridge when the motor cuts in, only a bit lower in frequency. I can also compare it to the distant, low sound of an engine running or a cement mixer on a dist

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.