New Zealand, Christchurch · 2018-05-22 · from the WORLDHUMMAP archive
Low rumbling. I live in an area that has experienced a lot of earthquakes, so when I first started hearing the hum I thought it was an approaching small earthquake but the earthquakes never arrive. I then thought someone must be running their car, or working on it late at night or maybe there's a tractor or something nearby, but being a small neighborhood that was easy to investigate and that wasn't the answer either. It's also not planes overhead, though we are in the flight path they sound distinctly different and being a small airport don't have any flights between 10pm and 6am so that can't be it either! I have heard it mostly every night, for about 18months now.
What they reported
First noticed: 2017
Pitch: B0, sine, 31 Hertz
Loudest: During the night
Where: Indoors
Symptoms: Insomnia;Anxiety
Changes with weather: Strong winds or heavy rain drown out the sound
What stood out: a low humrumbling
Humming/ rumbling in ears that can last months or come and go over days. Extremely stressful after all tests reveal nothing wrong. Causes stress and anxiety. Feels like an invasion when you …
both described a low hum · rumbling · on the other side of the country
Very low frequency rumbling, like an engine idling at a distance I put together a simple experiment: connected microphone to PC and downloaded some free spectrum analyzer software. In range …
both described a low hum · rumbling
ohhhh Wow...thank you thank you thank you....so I'm not crazy!!! I am sensing something. I live in the NE US. I can certainly relate to this, I hear/sense it a lot, usually late in the eveni…
both described a low hum · rumbling · on the other side of the country
A disturbing, vibrating, continual rumbling sound that gets louder at night when other sounds are reduced. The noise/vibration/frequency prevents me from sleeping many nights or from ever sl…
both described a low hum · rumbling
Low, soft rumble - as if a large truck were idling in the distance - it varies, but not rhythmically - I can almost "feel" the vibrations. Most predominantly at night, in the bedroom on the …
both described a low hum · rumbling · on the other side of the country
It's a deep, rumbling sound that is similar to a running diesel engine, or music with a deep bass being played. Although it helps to play music/put on a fan to drown out the hum, putting my …
both described a low hum · rumbling · on the other side of the country
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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