Strange Sounds

Detroit, Michigan, west of the river - Windsor, Ontario, east of the river: why is it mostly residents of Windsor who hear it?
The Windsor Hum, can be heard throughout Windsor, Ontario, home to almost 220,000 people, but it has been reported 90 miles away in the US city of Cleveland.
Complaints of the part noise, part vibration arose in 2011, when locals initially compared it to rattling windows.
Comment: Interesting, that's the same year the 'strange sky sounds' phenomenon really took off.
But as the hum began to vary in its intensity, droning on for days at unbearable levels, distressed locals have taken to all forms of social media to question their hearing and vent their frustrations.
Those loud booms you've been hearing? The city of Springfield wants to know more about them.
City spokeswoman Cora Scott said Wednesday that the city has received two formal service requests and nine calls about the booms in the past few weeks.
And after more booms were heard early Wednesday morning, many more people are chirping about the booms on social media.
Scott said the city wants residents who have "experienced hearing or feeling" the booms to contact them with the exact time, date and location. Residents can call 417-864-1010, email city@springfieldmo.gov or post on the city's Facebook page.
Angela Edwards, 47, has lived her whole life in Springfield and said she has never heard anything like what she heard early Wednesday morning. "This is something huge. This is something big ... I wouldn't know how to describe it. It was like a deep, loud boom," Edwards said. "It wasn't normal - whatever it was."
Word of the mystery boom spread across Facebook Monday evening around 9 p.m. and again Wednesday around the same time.
People took to social media asking "Did anyone hear that? What was it?" Speculation ranged from thunder snow to a sonic boom, or a blown electrical transformer.
"I can't believe it was thunder. This was felt and heard from Cape Porpoise to Waterboro. Then two series of popping noises like semi-automatic gun fire," Kennebunk resident Wendy Lank said. "It was so loud, it really made me uneasy."
A few minutes later, residents in the Magnolia area, some 108 miles southwest of Pine Bluff, reported a similar sound to the online news organization Magnolia Reporter.
Reports in our area came in from just south of Walmart to Redfield and along US 79 in Watson Chapel.
The National Weather Service in North Little Rock ruled out any weather-related noises, such as thunder. The Pine Bluff Police Department also reported no information on the sound, which some residents south of Pine Bluff reported shook their homes.
Some residents wondered whether it was a sonic boom, an earthquake, or an avalanche.
But with no offical reports of an earthquake made in the area that day, the source of the boom appears to remain a mystery.
Residents started to try to solve the mystery when North Routt Rumors, a local news source in the area, asked its Facebook fans whether anyone else had experienced what felt like a "roof sliding" between 9 a.m. and 10 a.m. Thursday.
Comment: It may not be noise pollution, i.e. man-made. It could also be at least partly natural, but yes, 'new' at the same time.
What's striking in this particular case is that something about the location apparently 'anchors' the noise(s) there very frequently, if you'll excuse the pun. Zug Island, located in the river between the two cities, might in some way function as an 'anchor' or 'transducer' of electrophonic geomagnetic frequencies.
See also: Strange sky sounds: Metallic, groaning, trumpet-like noises heard worldwide in 2016