We may be dealing with a stratified layer of the atmosphere that provides a horizontal sound channel between layers. The general stillness supports all that. Then a simple burst of sheet lightening close to the ground would energize this layer to produce an expanding shock wave that would simply pass overhead while producing an audible sound such as we just heard.
I suspect it is that simple and the conforming conditions argue
forcefully for just that.
There are certainly known electromagnetic effects available that are
strongest with these conditions as well and this may act as a wave
guide.
Strange sounds
spook couple in Pennsylvania woods (Video)
The so-called "Strange
Sounds" phenomenon has struck again, this time in
Albrightsville, PA, and was experienced by a couple taking a morning
stroll in some nearby woods. Luckily, the pair had a camera phone and
were able to record the weird noises and posted the incident to
YouTube on Oct. 8, in the video embedded above.
In it, the
unidentified man and woman whisper to each other as the strange
noises can be heard in the distance. The sounds, variously identified
as "Sky Trumpets" or "UFO Booms", are perhaps
best described by the term "Skyquakes", as they do sound as
if the sky is opening up, much the way a chasm breaks open on the
ground, producing a deep, booming, mechanical-sounding noise.
Although the
phenomenon has been heard around the world for decades, it's only
with the recent proliferation of mobile phones, with high quality
video and audio capabilities, that the strange sounds phenomenon
has been properly documented around the world. Of course, some
pranksters have created hoax videos, duplicating the effect in order
to draw web traffic, or as a practical joke. But, there are enough
apparently authentic events documented to warrant serious
investigation of this unusual occurrence. This video appears to be
one of them.
Perhaps Wikipedia best
sums up the current thinking about what is causing these weird
noises, postulating that "Skyquakes are unexplained reports
that sound like a cannon or a sonic boom. They have been heard in
several locations around the world such as the banks of the river
Ganges in India, the East Coast and inland Finger Lakes of the United
States, as well as areas of the North Sea, Japan and Italy."
Furthermore, the
article states that skyquakes have been described as "being
like distant but inordinately loud thunder while no clouds are in the
sky large enough to generate lightning." That's
certainly the case in the video attached here, which caught the
strange sounds on a clear day, with a bright, blue sky, and without a
hint of a thunderstorm nearby.
What do you think?
What could be causing these strange sounds being heard once again all
around the world? Is it a natural phenomenon? Can they be caused by a
UFO, as some think? Or is this just another hoax? Please feel free to
leave a comment below.
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