Mysterious hum puzzling scientists | The survival encyclopedia


Mysterious hum puzzling scientists

on September 16. A strange hum from time to time I hear people on the coast of North Carolina. These sounds strong enough to induce jitter window glass and doors. The explanation has not been found yet similar to the hum may not be caused by hurricanes or human activity, the source remains a mystery.

Such noise is not something unique currently and is not tied exclusively to North Carolina. People living near Seneca lake in upstate new York, long enough I hear the same sounds, they called «Guns Of Seneca» (Seneca guns). On the coast of Belgium, the phenomenon is known as «sighs fog» or «belching fog». In the Delta of the Ganges and the Bay of Bengal it is called «Basiliskii guns» in the Italian Apennines — «brontidi» or «like thunder». In Japan, these sounds are called «Jan».

— Whatever it is, this is a very interesting topic for research — says seismologist David hill, an honorary member of the U.S. Geological survey from Menlo Park, California.

A long list of hypotheses

Currently, there are many plausible explanations for these puzzling phenomena, including earthquakes, fault rocks, mud volcanoes, explosive gas emissions into the atmosphere, storm surges, tsunamis, meteors, distant thunder and the so-called hum Sands.

— Obviously, there is an extensive list of natural processes that may be responsible for this phenomenon, — considers the hill.

Witnesses described these sounds as balls or the sound of falling stones is the same as when the earthquake in England in the period from 1880 to 1916. In 1975, researchers from the U.S. Geological survey was able to get both acoustic and seismic signals from earthquakes in California. It was found that three earthquakes with magnitudes between 2.0 and 2.8 was accompanied by the sound phenomena that started within 0.02 seconds after the passage of seismic waves through the measuring station. Similar results were obtained by earthquakes in the French Pyrenees in 2004.

In any case, sounds from earthquakes can be felt even if there is no significant man tremors, says hill. For example, while in the coastal areas of North Carolina earthquakes are rare, they are relatively common in the area of Charleston in South Carolina, where in 1886 happened Charleston earthquake of a magnitude of 7.6. Tremors are also quite frequent in the Catskill mountains, where there is a lake Seneca. Local residents could hear sounds from earthquakes, too weak to feel the tremors.

In addition, there are occasional breaks rocks when the rocks deep suddenly relieve internal stresses. Most often this happens over mine workings after the removal of significant masses of rock. Such faults can be considered to be small near-surface earthquakes. Researchers recorded appreciable shock and sudden loud sounds during such faults.

Responsibility for such mysterious sounds can lie and giant waves. For example, the hum well-known to surfers looking for extreme waves. Moreover, after the catastrophic earthquakes of a magnitude of 9.1 Sumatra in 2004 and the ensuing tsunami, many witnesses from different regions reported that they had heard a loud roar from the sea, accompanied 2-3 biggest waves that hit the shore.

— I was surprised to learn that a tsunami can produce similar sounds, — said hill. — I don’t think anyone understands how this happens.

David believes that the sounds heard in North Carolina, Belgium and the Bay of Bengal can be caused huge waves generated by remote storms, raging at a considerable distance from the coast. These waves can also affect underwater deposits of gas hydrates, causing explosive methane emissions.

Hum Sands and seismometers

Another possible explanation may Meteora, which able to create sonic booms and the strongest explosions after entry into the dense layers of the atmosphere. Given the speed of sound, visible signs of meteor may disappear long before the sounds of the shock wave reaches the observer, especially in the daytime.

Under certain conditions, even sand dunes can generate a variety of sounds, including whispering, humming, whistling and shrieking. Hum Sands, comparable with the rumble of thunder can be heard at a distance of 10 km with a duration up to 15 minutes. Typically, these sounds are created on the leeward slopes of the big dunes in arid climates, with dunes should consist of smooth almost spherical grains of sand.

— In the Eastern desert in Egypt, the Bedouin have long heard this roar and avoided visiting these areas. After installation of seismometers, the researchers found that these sounds are associated with minor earthquakes that cause the hum of the dunes, — said hill.

In the future, when artificial sources (military training and career explosions) will be excluded, a network of seismic sensors will allow to establish whether the source of these sounds earthquakes or volcanoes. For example, mobile network USArray seismometers currently moving eastward across the United States and can help to identify the source of sounds in North Carolina.

Hill presented the details of the studies in the autumn issue of the journal Seismological Research Letters.

Translation: Vitaly Semkin
Source: msnbc.msn.com

 

The groan of the Earth: around the world the Earth is making strange noises

About this strange sound from different places of the Earth report more often, sometimes the sound precedes the earthquake. These sounds can hear not only individuals, but whole stadiums, and sometimes even entire cities.

The day before a major earthquake in the North-Eastern part of the United States during the baseball game was heard a strange sound that was recorded on video (see below). Also the sound was reported from Russia, Canada and other places, and he also preceded the earthquake.

\»The phenomenon woodpecker\»

We know that in the 70-ies of the technology electromagnetic pulse Russians caused the effect woodpecker, which was passed in the United States.

And even then people were concerned about the impact on the brain.

You can only imagine what they are capable now the heater of the ionosphere and other technologies.

This is all very strange, and thanks to youtube, all these phenomena are well documented.

(Below) In the U.S. this phenomenon took place most recently… of Course it was explained that this PA system (prob. the public address system at the stadium; approx. mixednews). It’s the same sound as on the video above… where there were no stadiums, no PA systems… And just before the earthquake in the North-Eastern part of!

Here is another example. This strange sound similar to the sound during a baseball game, and some other clips.

The next example. This time is slightly different. High sound preceded the day with a strange clouds and a rainbow — and 11 hours later, this region was also 5-point earthquake.

Approx. mixednews: We have introduced a set of videos with strange sounds. They all took place in different countries and cities in Russia, Ukraine, Poland, USA, Canada, Brazil…

Judging by the tone, they all supposedly have the same nature. In addition, there is another General point: almost all of these sounds took place in August 2011 (see date movie).

Tula, Russia:

Krasnoyarsk, Russia:

Moscow, Russia:

Kiev, Ukraine:

Odessa, Ukraine:

Zhitomir, Ukraine:

Lodz, Poland:

Curitiba, Brazil:

South East England:

In this case, the sound is different from the others. The author of the video writes: the Sound was recorded on August 24, 2011 in the South East of England. The place where I live, very isolated, and next to me is just 12 other private houses. The nearest town is more than 20 kilometers. Most of this is similar to the huge sound of the engine… But it was difficult to determine the origins of the sound. He seemed to be coming from everywhere. And the nearest railway station is located more than 60 kilometres away. Other neighbors were awakened by a strange sound, but also could not explain what it is. Then the sound suddenly stopped. In total it lasted about 15 minutes.

Source: Mixednews

Compilation of strange atmospheric sounds for 2011

Predposledni misty video — installation.
Cm. the original video.

Author’s comment:

Credits:
Photography & editing: Hokum
Tripods: Roy Augenstein and Dugan Beach (War of the worlds)
Sounds by: Hokum, klankbeeld, sandyrb, ERH tea

Comment:

We also fill and remind articles previously published by us. 

· Ontario, Canada: residents are concerned about a strange underground tremors
· Sounds before the earthquake in Colorado, USA
· A strange sound in Kiev
· Warning of volcanic eruptions and seismic activity in Australia
· Mysterious hum brings residents of the English village to madness
· Residents of Virginia heard a mysterious sound kick
· Canada: Strange hum — origin unknown. Industrial source excluded
· A strange hum in Florida
· St. Petersburg again hear the explosions. Military and rescue workers too, but don’t know where

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