Mysterious sounds from the Pacific ocean


The Living Force
I found this over at IO9,maybe it would be of interest :

Meet the Bloop, the mysterious sound from the bottom of the Pacific Ocean
The Bloop is one of about a half-dozen unexplained sounds that the NOAA's Acoustic Monitoring Project has picked up in its more than twenty years listening to the noises of the Pacific. While some of these sounds seem to have relatively obvious explanations, a few really are baffling, and they represent one of science's great unanswered mysteries. Let's now take a closerlisten to the Bloop and five other strange underwater sounds.
Soundclips are in the article

I was wondering if those sounds could have any link to what is happening above, with all the strange sounds heard worldwide but probably they are very distinct phenomenons because they were recorded between 1991 to 1997.


Dagobah Resident
The origin of this sound is indeed quite intriguing - even more so as it is very close to the location of Lovecraft's fictional "extra-dimensional city" in the Pacific Ocean where the famous "Cthulhu awakens".

Another parallel: In the story, Cthulhu is a monster of enormous size, and according to NOAA, this mystery sound resembles a living creature more than anything else - but it is several times louder than the biggest and loudest animal in the ocean, the blue whale.

The sound, traced to somewhere around 50° S 100° W (a remote point in the south Pacific Ocean west of the southern tip of South America), was detected several times by the Equatorial Pacific Ocean autonomous hydrophone array, which uses U.S. Navy equipment originally designed to detect Soviet submarines.

According to the NOAA description, it "rises rapidly in frequency over about one minute and was of sufficient amplitude to be heard on multiple sensors, at a range of over 5,000 km." The NOAA's Dr. Christopher Fox does not believe its origin is man-made, such as a submarine or bomb, or familiar geological events such as volcanoes or earthquakes.

While the audio profile of the Bloop does resemble that of a living creature, the source is a mystery both because it is different from known sounds and because it was several times louder than the loudest recorded animal, the blue whale.

Five other significant unexplained sounds have been named by NOAA: Julia, Train, Slow Down, Whistle, and Upsweep.


The roughly-triangulated origin of the Bloop is approximately 950 nautical miles (1,760 km) from the location of R'lyeh, a sunken extra-dimensional city written of by H. P. Lovecraft in his famous short story The Call of Cthulhu, wherein the eponymous dead-but-dreaming creature Cthulhu awakens. Even with this distance separating them, they have been frequently linked.
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