24297 Horby Sweden
St Helena Island South Atlantic Ocean · 2019-03-13 · from the WORLDHUMMAP archive
A low hum in 24297 Horby Sweden
St Helena Island South Atlantic Ocean
An almost mechanical dull humming sound often punctuated with breaks of up to several minutes. Mostly noticed at night. I dreamily associate it with the sound of the earth rotating on its axis I was surprised to hear the hum on st Helena where I thought I was away from all possible or likely sources of general background noise and the sound was not coming from the limited number of household appliances. There is no traffic to speak of. Little urban infrastructure and few passing submarines!
What they reported
First noticed: 2000
Pitch: 135Hz Sine
Loudest: During the night
Where: Indoors
Symptoms: Insomnia
Changes with weather: Not sure. I have lived in southern Sweden and on a sub tropical island and experienced in both
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both described a low hum · 565 km away
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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