AnomalyLike electricity but we have loadshedding which is a total black out for 4 hours stretching 10 suburbs and I can still hear it. My kids cant. Its not crazy mad but its irritating and I keep asking people to stop and listen to see if they can hear it which they cant. When Im quiet and alone ie no TV so reading, sleeping or studying it gets reallly loud and throbs stronger to weak, back to strong etc.
South Africa, Johannesburg · 2023-01-04 · from the WORLDHUMMAP archive
An account in South Africa, Johannesburg
What they reported
First noticed: 2021
Pitch: Sine 440 htz
Loudest: During the night
Where: Indoors
Symptoms: Ear discomfort (pain, fullness, throbbing), Headache, Insomnia, Sense of vibration
Changes with weather: Havent really observed but I would say they day after or hours after rain make it stonger.
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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.