Vallejo, California above the 80 freeway. · 2018-04-08 · from the WORLDHUMMAP archive
A low hum in Vallejo, California above the 80 freeway.
Low cycling hum like a diesel engine parked in front of my house. I'd love some answers. I just want to hear the birds and not the relentless droning...I see others near my place are experiencing this. I live by electric towers, above the Napa River, and between two freeways. The house is on one of Vallejo's many hills, and very near a mining operation, and two major refineries. Sometimes the drone is low and slow and sometimes, like at present, it's revved up. Almost like a diesel turbine.
What they reported
First noticed: 2014
Pitch: It's like Sine at 118 htz, but much LOWER and with a revving quality like an engine.
Loudest: During the night
Where: Indoors
Symptoms: Ear discomfort (pain, fullness, throbbing), Headache, Insomnia, Sense of vibration, Anxiety
Changes with weather: It seems to be present no matter the weather.
Low frequency hum, always same frequency, I'd estimate around 50hz (at least my perception). I only hear it at/in my home, if I'm at another location, I don't think I've ever heard of it. …
Low pitch hum estimating around 50-100hz The sound is not a perfect pure tone, and has slight volume changes, it sounds similar to the hum of a fan motor. I have driven around in an attempt …
A low frequency Hum sound that fluctuates subtly but for the most part is steady The Hum is a low frequency and droning sound and it kind of fluctuates in tone.. almost like an idling diesel…
Very low-pitched continuous drone. Pitch rises and falls slightly but can remain steady at times. Inaudible to my wife. Reminiscent of the hum from a large transformer/sub station but there …
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…
Low hum, sometimes pulsating, sometimes not. It is very loud. It sounds like a propeller airplane way off in the distance, but it doesn├»┬┐┬╜t go away. Or an 18-wheeler on a busy freeway, …
both described a low hum
Has this happened to you?
Write it down while you still remember the details. We will look for the others.
If this reminds you of something a friend or a relative told you once and never mentioned again, send them this page. Reading that a stranger described the same thing is usually the part that helps.
Nothing is tracked back to you and nothing is sent on your behalf. The link is just the page you are reading.
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