New Zealand, Auckland 2583 · 2019-05-19 · from the WORLDHUMMAP archive
A low hum in New Zealand, Auckland 2583
Low oscillating hum, not loud but pervasive. Sounds like truck engines idling some distance away or a tumble dryer running in another room. Or a helicopter that doesn�t get closer. No clear direction, just all around. It invades silence. I can hear it over my computer fan, or a quiet passing car. Can�t hear it when there are other noises (birds, people talking, appliances). Mainly I hear it in my bedroom which has exterior walls on 3 sides. I�ve tried turning off all power to the house. Near us there are high voltage power lines but the hum they make is higher pitched. There are 4 dam/reservoirs in the hills nearby (between 3km and 20km away) which feed a water main to the city. Dairy Farms nearby also. Cant find a likely source amongst these (pump, vat?) but there could be something around.
What they reported
First noticed: 2017
Pitch: 57 Hz
Loudest: During the night
Where: Indoors
Symptoms: Insomnia, Sense of vibration, Anxiety
Changes with weather: Wind noise can override the hum
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the accounts read alike, found by meaning rather than by shared details
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the accounts read alike, found by meaning rather than by shared details
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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.
Anomaly