The following is an interview of
Professor Elchin Khalilov, a Geophysicist, who works in the area of geodynamics and geotectonics. In the discussion with the GeoChange Journal, he provides his own theory and explanation for the strange sound phenomena heard across the Earth. In addition, he also forecasts what the answer means for the geology of the planet.

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.
In that case, what could be causing this humming in the sky?
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| Professor Elchin Khalilov. |
In our opinion, the source of such powerful and immense manifestation of
acoustic-gravity waves must be very large-scale energy processes. These
processes include powerful solar flares and huge energy flows generated
by them, rushing towards Earth's surface and destabilizing the
magnetosphere, ionosphere and upper atmosphere. Thus, the effects of
powerful solar flares: the impact of shock waves in the solar wind,
streams of corpuscles and bursts of electromagnetic radiation are the
main causes of generation of acoustic-gravitation waves following
increased solar activity.
Given the surge in solar activity as manifested itself in the higher
number and energy of solar flares since mid-2011, we can assume that
there is a high probability of impact of the substantial increase in
solar activity on the generation of the unusual humming coming from the
sky. It should be pointed out that solar activity began to rise sharply
since early 2011, with its amplitude significantly higher than all
forecasts given by a number of influential scientific institutions in
2010 and 2011. Meanwhile, the observed increase in solar activity is
fully consistent with the forecast of the International Committee GEOCHANGE
published in the Committee's Report in June 2010. If this growth rate
of solar activity continues, its amplitude by the end of 2012 will be
higher than the amplitude of 23rd solar cycle, and in 2013-2014 the
solar activity will reach its peak the amplitude of which was predicted
by us to be 1.5 - 1.7 times higher than the amplitude of the 23rd cycle.
But you said that the cause of the "sky hum" can lie within Earth's core as well, what does it mean?
There is one more possible cause of these sounds and it may lie at the
Earth's core. The fact is that the acceleration of the drift of the
Earth's north magnetic pole which increased more than fivefold between
1998 and 2003 and is at the same level today points to intensification
of energy processes in the Earth's core, since it is processes in the
inner and outer core that form the Earth's geomagnetic field. Meanwhile,
as we have already reported, on November 15, 2011 all ATROPATENA
geophysical stations which record three-dimensional variations of the
Earth's gravitational field almost simultaneously registered a powerful
gravitational impulse. The stations are deployed in Istanbul, Kiev,
Baku, Islamabad and Yogyakarta, with the first and last one being
separated by a distance of about 10,000 km. Such a phenomenon is only
possible if the source of this emanation is at the Earth's core level.
That huge energy release from the Earth's core at the end of the last
year was some kind of a start signal indicating the transition of the
Earth's internal energy into a new active phase.
Intensification of the energy processes in the Earth's core can modulate
the geomagnetic field which, through a chain of physical processes at
the ionosphere - atmosphere boundary level, generates acoustic-gravity
waves the audible range of which has been heard by people in the form of
a frightening low-frequency sound in different parts of our planet.
In both cases, even though the causes of acoustic-gravity waves are of a
quite understandable geophysical nature, they are indicative of the
expected significant increase in solar activity and the geodynamic
activity of our planet. There is no doubt that processes in the core
rule the internal energy of our planet, therefore, we should
expect by the end of 2012 a sharp rise in strong earthquakes, volcanic
eruptions, tsunamis and extreme weather events with peak levels in 2013 -
2014.
Recently, researchers using
NASA's fleet of five THEMIS spacecraft have discovered a form of space weather that packs the punch of an earthquake and plays a key role in sparking bright Northern Lights. They call it "the spacequake."
A spacequake is a temblor in Earth's magnetic field. It is felt most strongly in Earth orbit, but is not exclusive to space. The effects can reach all the way down to the surface of Earth itself. "Magnetic reverberations have been detected at ground stations all around the globe, much like seismic detectors measure a large earthquake," says THEMIS principal investigator Vassilis Angelopoulos of UCLA.
It's an apt analogy because "the total energy in a spacequake can rival that of a magnitude 5 or 6 earthquake," according to Evgeny Panov of the Space Research Institute in Austria. Panov is first author of a paper reporting the results in the April 2010 issue of Geophysical Research Letters (GRL). In 2007, THEMIS discovered the precursors of spacequakes. The action begins in Earth's magnetic tail, which is stretched out like a windsock by the million mph solar wind. Sometimes the tail can become so stretched and tension-filled, it snaps back like an over-torqued rubber band. Solar wind plasma trapped in the tail hurtles toward Earth. On more than one occasion, the five THEMIS spacecraft were in the line of fire when these "plasma jets" swept by. Clearly, the jets were going to hit Earth. But what would happen then? The fleet moved closer to the planet to find out.
"Now we know," says THEMIS project scientist David Sibeck of the Goddard Space Flight Center. "Plasma jets trigger spacequakes." - NASA.
WATCH: Spacequakes Rumble Near Earth.