posted on Oct, 22 2011 @ 10:08 AM
reply to post by StealthyKat
Yes it does sound like what is being reported. There was a thread this morning of someone in LA who heard the HUM for an hour. It makes you
wonder...wth is it? This sound, whatever it is is being heard all over the world. What is all over the world? Crust? Sea floor moving, possibly.
Crustal displacement can add in to that theory. Also, this new Super Volcano that is growing rapidly could be causing a sound possibly that coincides
with sea floor spreading??
I just don't know!!
I just had a thought and wanted to edit it in. I am sure it is way off...but ya never know. What happens to the atmosphere during a geological event
such as an earthquake? It heats up! With this heating the total electron content of the ionosphere increased possibly??
These kinds of observations are consistent with an idea called the Lithosphere-Atmosphere-Ionosphere Coupling mechanism. The thinking is that in the
days before an earthquake, the great stresses in a fault as it is about to give cause the releases large amounts of radon. The radioactivity from this
gas ionises the air on a large scale and this has a number of knock on effects. Since water molecules are attracted to ions in the air, ionisation
triggers the large scale condensation of water.
While this may indeed happen with or without an EQ....what would the sound create and would the water (sea) that inhabits the seas incorporate the
sound people are hearing as well? Just thinking out loud here.
Here is more reading that may give us some answers.
The propagation of sound in the ocean at frequencies lower than 10 Hz is usually not possible without penetrating deep into the seabed, whereas
frequencies above 1 MHz are rarely used because they are absorbed very quickly. Underwater acoustics is sometimes known as hydroacoustics. The field
of underwater acoustics is closely related to a number of other fields of acoustic study, including sonar, transduction, acoustic signal processing,
acoustical oceanography, bioacoustics, and physical acoustics.
Transient sound sources also contribute to ambient noise. These can include intermittent geological activity, such as earthquakes and underwater
volcanoes, rainfall on the surface, and biological activity. Biological sources include cetaceans (especially blue, fin and sperm whales),
certain types of fish, and snapping shrimp.
Which leads me to wonder if this "noise" may be what is killing our sea life that has a sensitivity to sound???
Hearing sensitivity The lowest audible SPL for a human diver with normal hearing is about 67 dB re 1 μPa, with greatest sensitivity occurring at
frequencies around 1 kHz. Dolphins and other toothed whales are renowned for their acute hearing sensitivity, especially in the frequency range 5
to 50 kHz. Several species have hearing thresholds between 30 and 50 dB re 1 μPa in this frequency range. For example the hearing threshold
of the killer whale occurs at an RMS acoustic pressure of 0.02 mPa (and frequency 15 kHz), corresponding to an SPL threshold of 26 dB re 1 μPa.
By comparison the most sensitive fish is the soldier fish, whose threshold is 0.32 mPa (50 dB re 1 μPa) at 1.3 kHz, whereas the lobster has a hearing
threshold of 1.3 Pa at 70 Hz (122 dB re 1 μPa).
Could we be hearing an echo from the sea across the globe??
Sonar is the name given to the acoustic equivalent of radar. Pulses of sound are used to probe the sea, and the echoes are then processed to extract
information about the sea, its boundaries and submerged objects. An alternative use, known as passive sonar, attempts to do the same by listening to
the sounds radiated by underwater objects.
And then there is Harmonic tremors that may indeed be related to volcanic activity and would make a "sound" that many report hearing. Is a Super
Volcano about to erupt or could it be the newly found Super Volcano is only new to us but the growth and magma within this monster is causing sounds
to be echoed and sea life death?
I am leaning toward there is volcanic activity, sea floor spreading and the sounds are reflections of this. This is also the reason for sea life die
outs in mass due from possibly the sound. It confuses them possibly.
Harmonic tremors are often the result of magma pushing against the overlying rock below the surface. They can sometimes be strong enough to be felt as
humming or buzzing by people and animals, hence the name.
edit on 22-10-2011 by MamaJ because: (no reason given)