For several decades now, people from different parts of the world have been claiming to hear a mysterious, incessant hum.

An anomaly called “The Hum” was recorded in the city of Taos, New Mexico in the USA, in Windsor, Canada, Sydney in Australia and the city of Largs in Scotland.
However, what causes the strange sounds and why only a small percentage of the population in certain places hears them remains a mystery, despite numerous scientific studies.
Evidence began to emerge as early as the 1950s, when people who had never heard anything unusual before suddenly began to detect an annoying, low-frequency hum, reminiscent of the sounds of grumbling or beating.

Scientists have identified several similar factors in many cases. Firstly, the “Hum” was only audible indoors, and was heard louder at night than during the day. Additionally, it has been observed primarily in suburban or rural areas. This may be because such places are quieter than densely populated cities.

Rumble of the Earth (video)

It is known that only 2 percent of the population in places where the "Hum" is heard can detect this sound. A 2003 study found that most were between 55 and 70 years old.
Where did the strange sounds from the sky come from?

People most often describe it as similar to the idling sound of a diesel engine. And almost everyone who has heard it says that it drives them to despair.

Due to the constant buzzing in the head, some people begin to experience unpleasant symptoms such as nausea, headache, dizziness and nosebleeds. In addition, many people do not get enough sleep because the sound becomes more intense throughout the night, causing them to toss and turn in bed. There was even one case of suicide due to the intrusive sound.

Strange sounds of the Earth: what causes them?

Many scientists investigating the mysterious anomaly believe that this phenomenon really exists and is not the result of mass hysteria or hypochondria.

Factories

In 2003, a study conducted in the city of Kokomo, USA, found that two industrial plants could be the source of noise of a characteristic frequency. However, despite measures to eliminate noise, residents continued to complain about annoying sounds.

Electrical sources

In other cases, high-pressure gas pipelines, power lines, wireless communications devices, and others were cited as possible sources. However, only a few cases could be linked to any mechanical or electrical source.

Electromagnetic radiation

There is speculation that the "Hum" is the result of low-frequency electromagnetic radiation that is only audible to some. Cases have been documented that some people are particularly sensitive to signals that are outside the normal range of human hearing.

Tinnitus

Doctors believe it may be caused by tinnitus, a ringing in the ears that occurs when there is no external source. However, examinations showed that most of these people had normal hearing and no problems were observed.

Seismic activity

Environmental factors are also often blamed for the sounds. Microseisms - weak low-frequency vibrations of the earth caused by ocean waves - are another possible cause of the "Hum" appearance.

Other speculations include military experiments and underwater communications, and even apocalyptic signs foreshadowing a polar reversal. Be that as it may, a definite answer has not been found, and perhaps “Hum” will remain a mystery for a long time.

A mysterious hum coming from the sky or from underground is heard by people all over the world. This phenomenon still has no explanation and is called The Hum. It resembles the grinding of metal, as if huge mechanisms inside the hollow Earth are beginning to work...

It sneaks under the cover of darkness and once heard, you can never get rid of it again...

However, no one can determine the source of this sound and why only a certain small percentage of the population in some areas hears it. This mystery remains in the Top 10 unexplained phenomena.

The first information began to appear in the 1950s from people who suddenly began to be haunted by a low-frequency, pulsating hum.

All these unexplained cases have common details. As a rule, the hum is heard indoors at night. It is also more distinct and common in rural or suburban areas. This is probably due to the high level of general noise in urban areas.

Who hears the rumble?

Only about two percent of people hear this hum, and only in certain areas of the Earth. According to research statistics from 2003, people between 55 and 70 years old most often hear noise.

Most people who hear a hum (sometimes called "hearers" or "hummers") describe the sound as similar to a diesel engine idling. This noise drives many people to despair.

“It can be compared to torture, sometimes you want to scream from powerlessness,” pensioner Katie Jacques Leeds told the BBC. Leeds resides in the UK, in an area where Goole has recently emerged.

“It’s worst at night,” says Jacques. “It’s hard for me to sleep because I hear this pulsating, annoying sound... I constantly toss and turn and it makes it almost impossible to sleep.”

Most victims have completely normal hearing. Victims complain of headaches, nausea, dizziness, nosebleeds and sleep disturbances. There was even one suicide recorded.

Gul Manifestation Zones

The English city of Bristol is called one of the first places where Gul manifested itself. In 1970, about eight hundred people heard a haunting, persistent, buzzing noise that was eventually attributed to local factories operating twenty-four hours a day.

Another mass incident was reported in 1991 near Taos, New Mexico. Residents of the area complained of a low-frequency, almost rumbling sound. A team of researchers from Los Alamos National Laboratory was never able to figure out the sources of the mysterious sound.

Another hot spot is in Windsor, Ontario. Recently, researchers from the University of Windsor and Western Ontario University received a grant to study the Hum and determine what causes it.

Also, for several years, Australian researchers have been studying a mysterious noise in Bondi, a coastal area of ​​Sydney, but to no avail. “This hum is driving people to madness. All you can do is turn on the music and turn it off for a while.", one of the residents told The Daily Telegraph magazine.

Returning to the United States, in 2003 the state of Indiana funded research in Kokomo. The investigation showed that one of the factories in the city, namely Daimler Chrysler, produced noise at certain frequencies. Despite the preventive work carried out, some residents continue to complain about the Gul.

What does Hum generate?

Most researchers are of the opinion that this phenomenon has real reasons and is not the result of mass hysteria or the mischief of aliens.

As with the city of Kokomo, industrial equipment is high on the list of suspects. In one case, the source of the noise was traced. It turned out to be the central heating unit.

Other researchers include high-pressure gas pipelines, power lines, wireless communication devices, and so on in the list of reasons. However, only rarely can a hum be associated with a mechanical or electrical source.

There is a theory that the hum may be the result of low-frequency electromagnetic radiation that is only audible to a small circle of people. It is likely that there are people with special sensitivity to signals outside the normal range of human hearing.

Environmental factors are also questionable. It is possible that the cause is seismic activity, in particular microseismic low-frequency tremors. And the cause of such tremors may be ocean waves.

Other hypotheses, such as military experiments or underwater communications, have not yet found evidence.

“The nature of this phenomenon has been shrouded in mystery for forty years and we may not soon know the true origin of this mystical Hum,” says the BBC.

Acoustic sensors and microphones, and often the human ear, are able to distinguish vibrations, the nature of which sometimes cannot be explained. Mysterious sounds attract, like any mystery, and can feed mystical and conspiracy fantasies for a long time. This was the case with the famous Bloop signal, a low-frequency “gurgle” that scientists at the National Oceanic and Atmospheric Administration (NOAA) recorded in the summer of 1997. Its source was in the ocean, not too far from the location of Cthulhu’s “capital”, the underwater city of R 'lie from the books of H. P. Lovecraft, and even the sound of Bloop suggests some rather dark thoughts. It took about 10 years to unravel the mystery, until finally the mystical fog dissipated: such a sound is created by intense processes in icebergs. The movement of cracks and the friction of ice layers against each other create “icequakes” that cause these floating mountains to vibrate and ripple the water column.

Bloop is far from the only mysterious sound that people have ever recorded in the ocean. And not the most mysterious: for example, military submariners first made recordings of the Bio-duck signal back in the 1960s, and their nature was established only half a century later. Their main oddity seemed to be the timing of their observations. Submarines operating off the coast of Australia noted these 1.5-3 second “creaks” at a frequency of 50-300 Hz constantly, except for the last months of the local spring and early summer: they disappeared in October and appeared only in December. In 2014, it was possible to show that the Bio-duck sound is created by Antarctic whales and southern minke whales (Balaenoptera bonaerensis). It is produced immediately before going to depth, which is why the source of Bio-duck remained elusive for so long.

However, many of these acoustic observations still cannot be explained. A strange sound, similar to the playing of a colossal trumpet or a locomotive whistle, was heard by many residents of the Northern Hemisphere in the summer of 2013. Messages were collected in both Texas and Norway, and one Canadian resident was able to record them using a video camera. The pastoral landscape of the province of Saskatchewan, torn apart by these sounds, looks worse than many horror films, and they still cannot be explained. Perhaps this effect was the result of powerful streams of charged particles bombarding the Earth's magnetosphere during hours of increased solar activity - similar to the sounds that auroras often make.

Another low-frequency sound recorded by underwater hydrophones of NOAA scientists in the equatorial Pacific Ocean remains unexplained. An Upsweep signal is a narrow “comb” of low-frequency oscillations powerful enough to be heard across almost the entire ocean. Like Bio-duck, the sound is seasonal and is usually noted in the spring or fall, which may indicate its biological nature. On the other hand, the Upsweep source is located in an area of ​​high volcanic activity, and may be created by geological processes. What exactly gives rise to it, as was said at the very beginning, “is unknown to science.”

Several years ago, the US Congress commissioned scientists and researchers from the country's most prestigious research institutions to study mysterious low frequency noise which is heard by residents in the vicinity of a small town Taos, New Mexico.

For years, those who heard this noise often described it as a "loud hum" and tried to figure out what was causing it. No one was sure exactly when the noise first appeared, but its constant occurrence first interested a few people, and then many who heard the noises joined together in a group that set out to find out what exactly was causing them. In 1993, they formally asked Congress for help.

Congress commissioned a team of a dozen researchers from some of the nation's leading scientific institutions to investigate. Joe Mullins of the University of New Mexico and Horace Poteet of Sandia National Laboratories soon submitted their final progress report.

Other scientific organizations in New Mexico also participated in the noise study, including Phillips Air Laboratory and Los Alamos National Laboratory.

At the beginning of the work, scientists suggested that the noise could be caused by manipulations by the military, but the Ministry of Defense assured that no actions or tests were taking place in this area, and until the end of the investigation they were completely open to dialogue with the team of scientists.

At the first stage of the investigation, specialists conducted a number of interviews with local residents who claimed to have heard a mysterious noise. The purpose of these interviews was to determine the nature of the noise, its frequency, time of occurrence and degree of impact on those who heard it.

The team's next step was to interview residents of the city of Taos and surrounding villages to determine how widely the mysterious sound was spreading. Finally, the research team had to try to determine the exact location and cause of the noise.

Possible sources of noise

The initial investigation focused on ten residents and it was from this that key facts surrounding the noise were identified. The hum was steady. Only a few heard it; the sound itself was low-frequency, between 30 and 80 Hz.

The noise of Taos caught on film

The researchers immediately hypothesized that, in fact, all residents simply perceived sound quite differently. Some claimed to hear a sound similar to a truck rumbling, while others heard a more sustained sound, similar to a pulsation, but also described it as low-frequency.

During the research, it was possible to establish that the mysterious sound was heard not only directly in the city of Taos, but also in its surroundings. Local residents also reported physical impacts from the noise.

According to their statements and complaints, the sound caused not only irritation, but also dizziness, insomnia, high blood pressure and, in some cases, nosebleeds. Eyewitnesses were also concerned about the artificiality of the sound, which did not seem to be an ordinary natural phenomenon.

According to a report dated August 23, 1993, most residents stated that they initially heard "the humming sound was sharp at first, like something was suddenly turning on." Many of the residents were also convinced that there was a connection between the strange sounds and military installations around New Mexico.

After detailed interviews with ten local residents, the research team decided to expand their field of activity in the city of Taos. A survey of 1,440 residents revealed that approximately 2% of the city's population heard a mysterious noise constantly. Given these circumstances, the first attempts to determine the nature of the sound were associated with possible external sources for the generation of low-frequency noise, but the results of the search were negative.

In the report, Mullins and Kelly concluded that “no acoustic sources were identified during the operation that could explain the noise. Also, there were no seismic events in this area that could have caused the anomalous sounds.”

After ruling out external sources, the team focused on surveying local residents, trying to determine their sound sensitivity thresholds. Although these studies were not complete, scientists soon came to believe that low-frequency noise in the ears of local residents may be responsible for reports of strange sounds in the area.

Mullins and Kelly suggested that it is possible that local residents have developed a special sensitivity to sounds in the range from 20 to 100 Hz, and therefore they perceive constant low-frequency sounds while others do not hear them. While this approach may help answer the question of the origin of the constant hum in the area, Dr Nick Bedzic and Patrick Flanagan have also explored another possibility about the origin of the noise.

Bedzic suggested that in our time, some people have developed unique abilities to perceive noises, which have become mandatory elements of modern society. In support of his theory, he added that every day our civilization creates more and more electronic noise or background, people use more and more wireless devices, and all of them, in fact, are transmitters of electromagnetic fields.

For some reason, according to Bedzic, some of the local residents learned to hear these sounds, and they became the cause of their discomfort. But Dr. Bedzic also noted that scientists certainly cannot be sure that electromagnetic fields are the cause of the noise, and that this assumption is just another version of the possible origin of the noise in Taos.

After putting forward such theories, scientists immediately wanted to get confirmation of its correctness, and set out to conduct joint attempts to establish the truth together with local residents.

To this day, no one has been able to establish whether the electromagnetic background is the cause of the strange sounds, and the search for its source is still ongoing...

Military exercises, earthquakes or something more terrible - witnesses from all over the Earth talk about deafening sounds, reminiscent of either the roar of a powerful engine, or thunder of enormous force. “360” tried to figure out where the mysterious noise came from, which is sometimes not only heard, but also felt.

Sound for no reason

A mysterious buzz in the air worries people from all over the world. Social media users write about inexplicable sounds that seem to come from nowhere. Sometimes they are not only heard, but also felt - palpable tremors pass through the windows and shake buildings. This year alone, 64 cases of “sound eruption” were recorded, The Sun reports. Residents of the United States, Australia, Great Britain, the Middle East and Finland heard deafening bangs with no apparent source.

In some cases, the sources of noise have been identified - powerful sound waves can be created by a meteorite “burning” through the Earth’s atmosphere or a combat aircraft accelerating to supersonic speed, but most of the incidents remained unsolved.

Back in May, the nightly peace of residents of the small Welsh town of Abergavenny was disturbed by strange bangs, and one of the women who heard the sound almost died of a heart attack, wrote the local newspaper Abergavenny Chronicle.

I almost had a heart attack. At first it seemed like fireworks or a shotgun blast. But no, the sounds were even louder. Maybe like a tank rushing at full speed. My husband said that these are mini meteorites falling to the ground - have you ever heard such nonsense?

- resident of Abergavenny.

The sounds in Wales have still not been explained - military pilots did not fly over the city, and an object from space, according to local government services, also did not fly over.

Louder than anything in the world

On November 14, the story of the mysterious cotton was repeated, first in the American state of Idaho, and the next day at the other end of the country - in Alabama.

A particularly powerful noise disturbed residents of Alabama. It was so strong that some houses shook, and in other places windows shook from the sonic boom, the Metro newspaper reported. Around 21:00 local time, police in the small town of Lakewood received reports of a loud explosion. The patrol went to the scene, but found no traces of the incident.

Government departments acknowledged the fact of the cotton, but could not give an exact answer as to what caused it. A nearby U.S. Air Force base reported no overnight flights, and satellite surveillance showed no evidence of an explosion or fire.

As the local branch of the US National Weather Service noted, their sensors did not show even a small earthquake in the area. “We don’t have an answer, we can only guess with you,” the department added on its Twitter, again suggesting that everything should be attributed to a supersonic plane or a meteorite.

The latest “sonic attack” in the United States occurred on Monday night in Colorado. Some of the eyewitnesses considered what they heard to be a test of a new secret weapon or the coming of aliens, CBS reports. This time, one of the local departments responsible for oil and gas production in the region put forward a working theory: supposedly the bang happened due to an incident with an empty oil storage tank - due to pressure overload, its hatch was torn off, which could lead to a loud noise.

The Creak of the Earth

At the end of September, abnormal noises invaded the lives of residents of Slovakia, Komsomolskaya Pravda wrote. It was as if a thousand-voice brass band was playing in the heavens or “the trumpets of Jericho were singing,” the newspaper’s journalist Vladimir Lagovsky described the strange phenomenon. According to him, he personally observed a similar anomaly in Russia.

Yes, I heard something myself several times. In the Moscow region, at the dacha. I've heard different things. The sound was as if a huge jet engine had suddenly been turned on at full power. It was as if some gigantic reservoir had burst, from which compressed air was escaping with a whistle. It seemed as if somewhere nearby a pile of stones was being dumped out of the car. But there was nothing like that in the area

- Vladimir Lagovsky.

Experts, including specialists from the NASA space agency, are trying to pinpoint the cause of the “sonic attacks.” Possible explanations include controlled explosions, unusual weather events such as electrical storms or lightning squalls, and large meteorites high in the atmosphere. All theories are not yet supported by any evidence. The most popular versions are some kind of heavy-duty aircraft or vibrations of the earth's surface.

But there have been no tremors capable of causing such a sound recently. This was confirmed to the 360 ​​website by the head of the laboratory of continental seismicity and seismic hazard forecasting at the Institute of Earth Physics of the Russian Academy of Sciences, Alexey Zavyalov. The seismologist is inclined to believe that such sounds can be heard by not very adequate people. Mass auditory hallucinations have indeed occurred in history, although in this case there is no reason to doubt the mental health of eyewitnesses.

The sound of an airplane is usually smooth, most often it is clear where it comes from, besides, such noise is familiar to most people, sound engineer David Kazaryan dismissed the “supersonic theory” in a conversation with 360.

“All flying objects have their own specific sound, some decibels, more than which it cannot be. We hear them everywhere, everywhere, always,” the specialist explained. In his opinion, abnormal noises may be of natural origin.

The mysterious sounds are caused by processes in the bowels and oceans of the Earth, Alexander Semenov, president of the Ecology of the Unknown association, told 360.

“The structure of the Earth is changing. Roughly speaking, it starts to creak. This is especially noticeable in geologically intense points such as the craters of ancient volcanoes. When the Earth begins to make such a sound, this phenomenon is very powerful, someone may mistake it for a trumpet voice from the sky - because the sound comes from different directions. These are probably harbingers of some kind of disaster.” - Semyonov summarizes.

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