An open record of things people cannot explain

Richgrove, CA USA 93261 (1 mile east in countryside) · 2020-04-01 · from the WORLDHUMMAP archive

A low hum in Richgrove, CA USA 93261 (1 mile east in countryside)

Low hum. Continuous. Some oscillation in loudness. Some breaks in the sound for a second or so occasionally. At night, although today for the first time I continued to lie in bed and follow the sound into the morning (currently 8:00 AM PST) and still going. The sound generator didn’t duplicate the exact sound. The best way to describe it would be like a bass guitar sound a half a mile away. And the volume oscillates. At its peak volume it almost feels like my entire body feels a mild vibration.

What they reported

First noticed: 2019

Pitch: 17.5 Hertz triangle

Loudest: During the night

Where: Indoors

Symptoms: Sense of vibration

Changes with weather: No

What stood out: a low hum

 

Others who described something like this

2020-01-29

Idling diesel engine of a truck From my investigation I find a relation with electro magnetic fields. It is like a sound, if you have multiple tones on the same frequencies you will experien

both described a low hum

2020-01-11

Low frequency "humming" Almost a "vibration". I would definitely discribe it as external This is a recent experience. Started Dec' 2019. I practice "stillness"/ contemplation and have done f

both described a low hum

2020-01-02

it sounds like a deep humming noise. when i first started hearing it and it started to affect me it reminded me of an old plane propeller (1900s), but from a distance. it doesn’t sound very

both described a low hum

2020-01-20

High pitch hum 24/7 for about 2.5 years,I have used FFT which shows MXComponet, FFT Wavelet CONTEC,HASP, android BLE, RS232C, GPS, Pyschis toolbar acceleromator Max Range 4.00 total G force

both described a low hum

2020-02-06

A constant low very penetrating low hum. It sings a little. Like a steamer coming from afar. I already have tinnitus with treble, but this sound is much worse and more penetrating. Yes, I d

both described a low hum

2020-01-05

Hum, deep. Mostly only at night. Not always present. The hum or pulse does not have a discernible pattern. Sometimes short rolling, but steady pulse with longer extended steady sessions . So

both described a low hum

2019-08-19

Low humming sound, feeling of vibration in head near ear. Morning and all night. Other sounds can cancel it out. It does not overlay it.. But the humming suddenly breaks if any sound (music)

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

2019-01-10

The sound is best descibed as deep vibration or low hum that sounds like it is from an engine or truck, but the sound seems to be travelling through a medium as a vibration. Sometimes it fl

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

2021-01-26

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.