P0R 1J0 · 2019-07-10 · from the WORLDHUMMAP archive
low frequency hum or rumbling Live within 2 miles of Great Lakes shipping channel (Lake Superior/Lake Huron) so thought at first was freighters or possibly jet plane overhead despite sound being continuous... but sound is heard in winter when locks are closed (and doubt that much air traffic). Did not hear when lived in TX or PNW (also rural).
What they reported
First noticed: 2013
Pitch: Sine or Triangle at very low volume
Loudest: During the night
Where: Indoors
Symptoms: Sense of vibration
Changes with weather: Don't think so
What stood out: a low humrumblingpilot witness
Evepresent tone different from normal tone of silence in the nature I thought this sound may have something to do with the three large airports in vicinity, a lot of air traffic and a presen…
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Continuous Low Frequency hum... maybe 120 hz, sometimes accompanied by a very low frequency, slow rumble ~30 hz. Was near a dynamite explosion once... also directly under a 3" artillery piec…
both described a low hum · rumbling · 257 km away
Low rumbling like a large jet but low and it seems loud but when I pull out my decibal reader it says it is around 35-40db. There is no source it seems to generally remain in this range. I h…
both described pilot witness · rumbling · on the other side of the country
Low pitch humming like a distant drone, constant low bass humming. At first I thought it was a distant engine, or electric transformer, or factory sounds in the distance... but I have ruled…
both described a low hum · rumbling · 469 km away
Low frequency rumble like a distant diesel engine idling. Heard more inside house or inside car if turned off. Walls seem to pass the sound. Slightly directional. Oscillates randomly. If I g…
both described a low hum · rumbling · 524 km away
Low constant rumbling vibration sound in the near distant, sometimes getting louder as it seems to be getting closer and then backs away. Sounds like Large heavy trucks slowly driving by in …
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