An unexplained rumbling disturbed hundreds of Windsor, Ont., residents this weekend to the extent that some thought it was an earthquake, prompting calls for Ottawa to step in.

City Coun. Al Maghnieh said he was inundated with telephone calls, emails and Facebook messages this weekend after the so-called "hum" returned, louder than ever.

'A lot of people are frustrated and to a point ... demoralized.'— Coun. Al Maghnieh

"Between the sound and the vibration, it was just very, very bad," Maghnieh said. "A lot of people are frustrated and to a point ... demoralized."

Residents across Windsor and neighbouring LaSalle began reporting a noise they describe as similar to an idling train or semi-trailer in February 2011.

Maghnieh said a "low-frequency rumble" seemed to peak early Sunday morning, calling it "really harsh."

This animation follows the solar wind as it travels from the Sun to the Earth, passing through the Earth's magnetic field (represented by orange lines). Where the solar wind's magnetic polarity is opposite that of the Earth's magnetic field, some electrically charged particles of the solar wind enter the Earth's magnetosphere through a fissure formed during the interconnection of the Sun and Earth's magnetic field lines. These particles flow down the field line and impact on the ionosphere creating a spot in the ultraviolet proton aurora about the size of the American state of California.

Originally posted by Cythraul

Mr. Khalilov, what is the nature of the unusual very low-pitched sounds reported by a great number of people in different parts of the planet since the summer of 2011? Many call them “The Sound of the Apocalypse”. Information about that comes from all over the world: US, UK, Costa Rica, Russia, Czech Republic, Australia, etc.

We have analyzed records of these sounds and found that most of their spectrum lies within the infrasound range, i.e. is not audible to humans. What people hear is only a small fraction of the actual power of these sounds. They are low-frequency acoustic emissions in the range between 20 and 100 Hz modulated by ultra-low infrasonic waves from 0.1 to 15 Hz. In geophysics, they are called acoustic-gravity waves; they are formed in the upper atmosphere, at the atmosphere-ionosphere boundary in particular. There can be quite a lot of causes why those waves are generated: earthquakes, volcanic eruptions, hurricanes, storms, tsunamis, etc. However, the scale of the observed humming sound in terms of both the area covered and its power far exceeds those that can be generated by the above-mentioned phenomena.

More at the GeoChange Journal

Originally posted by Mianeye

University of Saskatchewan professor Jean-Pierre St. Maurice says there is a natural explanation. "Somehow they are picking up noise from an electrical antenna that is there. That is electromagnetic noise. "

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