U.S.A. Northampton MA 01062 -- but I first heard it in Easthampton MA 01027 · 2021-02-08 · from the WORLDHUMMAP archive
it sounds like a diesel engine idling down the block. that's how I described it to someone the first time I heard it, before I ever looked it up on the internet and saw that's how other people describe it too. I'm pretty weirded-out by this, and wish that I didn't hear it. It makes me nervous! Sometimes when it's more intense, it's very irritating -- mostly because I know that I may be the only person in town hearing it! Also, it's all-pervasive, i.e. it's not coming from a particular direction, it's coming from everywhere at once. And it seeps through everything because the frequency is so low. **As far as the effort I put into trying to solve this in 2018, after process of eliminating any source in the house, and wandering the neighborhood to listen to people's air conditioning units, I even tried looking up freight train schedules to see if there was a freight train idling in the next town -- because there is a regular line that comes through tow, and sometimes it sits and idles there. It's definitely not that, though.
What they reported
First noticed: 2018
Pitch: 41 hertz
Loudest: During the night
Where: Indoors
Symptoms: Mostly it's just irritation, but it can border on anxiety. I really don't like the throbbing nature of it
Changes with weather: Sometimes I feel like it might, but I'd have to start keeping records to be sure. Sometimes I feel like cold, clear, dry = more likely to hear the hum, but not sure yet.
Low throbbing sound, like a diesel engine parked outside the house. More noticeable at night. Seems to come and go. At first I thought it was connected with the trains. A train on a rail…
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