An open record of things people cannot explain

South Africa, Cape Town · 2020-08-11 · from the WORLDHUMMAP archive

A low hum in South Africa, Cape Town

Low frequency pulsating late at night when everything is quiet. Specifically elevated when then there is no wind. The quieter the evening, the louder the hum. Its almost like a hovering or faint generator sound. There are no factories, power stations or sub stations within a 10km radius from my home Ask what is the spacing of the rhythm in seconds or milliseconds and how long the the duration is per session. Most nights it starts around midnight and carries on until 4 am.

What they reported

First noticed: 2020

Pitch: Can't replicate it with this tool. It's sib Hertz frequency. You can hear it and feel it if that makes any sense.

Loudest: During the night

Where: Equal indoors and outdoors

Symptoms: Ear discomfort (pain, fullness, throbbing), Insomnia, Sense of vibration, Anxiety

Changes with weather: Yes, you can't hear it if it's windy outside or when it rains

What stood out: a low humpulsing lighthovering

 

Others who described something like this

2018-10-02

Pulsating low frequency noise, sounds like some sort of aircraft hovering in the sky. Could be likened to a train passing through a tunnel. The hum will wake me out of my sleep, with a sense

both described hovering · a low hum · pulsing light

2020-02-11

An extremely low frequency sound that I can barely hear but at the same time is extremely loud, especially in my bathroom and my bedroom. Seems to not exist outside or for other people. Wh

both described hovering · a low hum

2020-04-06

deep, pulsing, vibration maybe i can hear the hum since the 1990s and i always thought is was a normal sound whitch can be explained. but in the year 2005 people told me about a unexplained

both described a low hum · pulsing light · on the other side of the country

2020-06-02

A low frequency machine noise, which has peaks and troughs of intensity as though two electric fans are coming into phase them exiting to antiphase, at intervals of 2-3 seconds. The sound a

both described a low hum · pulsing light · on the other side of the country

2020-01-25

Deep, pulsating, vibrating, feel it in my body, chest and head/ears, like an idle engine may be an aggregate.. same level constant, no escape There are two oil platforms "resting" in the fjo

both described a low hum · pulsing light · on the other side of the country

2020-09-21

It's a low frequency pulsating droning/rumbling similar to the sound a heat/water pump (HVAC) or a diesel generator makes. I live about 800meters (half a mile) from the largest Navel base in

both described a low hum · pulsing light · 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.