Monday, December 24, 2018

Low-frequency waves around world that rumbled for 20 minutes were detected

Submitted by: W.G.E.N.

One has to *wonder* with all the major EQ's - Volcano's - Tsunami's - making the news.
Makes me think of the GREAT FLOOD -  The Burning of Sodom & Gomorrah - and how humankind was and will be doing this when Christ returns: Matt 24:36-38:   36No one knows about that day or hour, not even the angels in heaven, nor the Son, but only the Father. 37As it was in the days of Noah, so will it be at thecoming of the Son of Man. 38For in the days before the flood, people were eating and drinking, marrying and giving in marriage, up to the day Noah entered the ark.…  
If you are still in denial of the need to Confess, Repent, and ask Christ into your heart I suggest that you really think long and hard on changing your mind.  All those folks just hit by that Tsunami didn't have a clue that they weren't going to be alive today.  Nor did all those who were destroyed by the Volcanos that have blown their tops.  I recall all too well when Mt. St. Helens blew.

The world is divided into two groups - not political party - not skin color - not nationality - but by those who have accepted Jesus Christ and are SAVED and those who have denied Jesus and are not Saved.  We shall either be in Heaven with Him or in Hell with Satan.

Jackie Juntti
WGEN  idzrus@earthlink.net
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https://www.dailymail.co.uk/sciencetech/article-6439979/Mystery-strange-seismic-waves-shook-world-November-11th.html

Mystery of the 'rumble in the Indian Ocean' is SOLVED: Strange seismic waves that shook the world on November 11 were 'almost certainly' triggered by an underwater volcano

  • Low-frequency waves around world that rumbled for 20 minutes were detected
  • Researchers say there was no large earthquake that corresponds with the waves
  • Internet sleuths have traced the origin to a spot just off the shores of Mayotte

By CHEYENNE MACDONALD FOR DAILYMAIL.COM and HARRY PETTIT FOR MAILONLINE 

PUBLISHED: 17:58 EST, 28 November 2018 | UPDATED: 10:45 EST, 29 November 2018

Mysterious seismic waves picked up by monitoring stations from Madagascar to Canada were most likely caused by a volcano under the seabed, an earthquake expert claims.

A low-rumbling that could not be felt above ground was detected on November 11 and narrowed down the origin to a region just off the coast of the island of Mayotte.

They were similar to those typically seen after large earthquakes, which are known to travel great distances - but, no such earthquake took place.

Theories as to what caused the cryptic rumble ranged from a slow earthquake to an undetected meteor strike.

But one scientist who has studied the charts told MailOnline that the trembling was 'almost certainly' caused by a low-level underwater volcanic eruption off the northeast of Mayotte.

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Seismic signals originating off the coast of the small French island of Mayott were detected at seismology station ranging from Chile to New Zealand
Researchers and earthquake enthusiasts who spotted the signals
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Researchers and earthquake enthusiasts who spotted the signals have narrowed down the origin to a region just off the coast of the island Mayotte (shown), in the Indian Ocean

Anthony Lomax, an independent seismology consultant, said the shakes were 'almost certainly' caused by undersea activity, not very deep under the seafloor, to the northeast of Mayotte.

'There has been ongoing low-level seismic activity there since May,' he told MailOnline.

'Inflation/deflation and collapse of volcano calderas, and movement of magma under a volcano can produce a wide variety of seismic signals, including long period and repetitive waves like those observed November 11.'

The monotone 'ring' was picked up by seismographs almost 11,000 miles (18,000 km) from Mayotte, and were spotted by chance.

A New Zealand based Earthquake enthusiast who goes by the handle @matarikipax noticed unusual seismology readings from the US Geological Survey.

The agency publishes all of its recordings for free online, allowing anyone across the globe to trawl through its data.

'This is a most odd and unusual seismic signal. Recorded at Kilima Mbogo, Kenya,' @matarikipax wrote on Twitter on November 11.

'The signal can be seen all around the world.'
Experts detected strange earthquake-like readings at seismology
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Experts detected strange earthquake-like readings at seismology stations across the globe. Pictured are seismograph readings produced by three detectors at the FOMA seismology station in Madagascar. The strange seismic waves were picked up around 9:30am GMT (4:30am ET). The thick black lines show normal background noise that could be caused by anything from waves hitting a beach to a strong wind. The thinner, larger back lines show something more significant, and would normally indicate that an earthquake has occurred

Their posts sparked the interest of seismologists on Twitter, starting a global discussion as to what caused the covert shakes.

Many others chimed in to the conversation to point out where else the low-frequency waves were detected: Chile, New Zealand, Canada, and Hawaii.

They are unusual because of their monotone, low-frequency 'ring', as well as their global spread.

During a typical earthquake, the build up of tension releases in a flash of mere seconds, releasing a powerful 'ping' of pressure.
The strange waves were traced to an origin roughly 15 miles (24
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The strange waves were traced to an origin roughly 15 miles (24 kilometres) off of the French island, Mayotte

The fastest travelling signals, known as primary or P waves, reach seismographs first, and produce a bunched-up reading of repeated tremors.

They are followed by S or secondary waves, which register as longer, side-to-side motions.

Finally, 'slow waves' reach seismographs, which are prolonged rumble - much like the waves triggered at Mayotte.

These signals seemed to propagate without a triggering earthquake - and that wasn't all that peaked the interest of scientists.
Earthquake experts on Twitter debated over what could have caus
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Earthquake experts on Twitter debated over what could have caused the seismic waves. The Twitter thread pictured first revealed the strange phenomenon on the morning of November 11. Scientists and earthquake enthusiasts alike worked to narrow it down

The waves were monochromatic, meaning it did not send out a bundle of frequencies, like most earthquakes.

Instead, the zigzagging pattern it produced was primarily made up of one type of wave, which took 17 seconds to repeat.

University of Plymouth Geology Graduate and founder of UK Earthquake Bulletin Jamie Gurney said he had 'no idea if a similar global signal of this nature has ever been observed'.

Scientists are working to understand what spurred the mysterious waves on that day.

So far, many suspect they're related to an ongoing seismic swarm in the region that began last May.

Hundreds of small quakes have hit the region during that time, with the largest reaching magnitude 5.8 on May 15.

But even then, there was no corresponding earthquake on November 11.


HOW ARE EARTHQUAKES MEASURED?

Earthquakes are detected by tracking the size, or magnitude, and intensity of the shock waves they produce, known as seismic waves.

The magnitude of an earthquake differs from its intensity.

The magnitude of an earthquake refers to the measurement of energy released where the earthquake originated.

Magnitude is calculated based on measurements on seismographs.

The intensity of an earthquake refers to how strong the shaking that is produced by the sensation is.
A 5.3 magnitude earthquake hit the Channel Islands off the coas
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A 5.3 magnitude earthquake hit the Channel Islands off the coast of southern California on Thursday at 10.30am

According to the United States Geological Survey, 'intensity is determined from the effects on people, human structures and the natural environment'.

Earthquakes originate below the surface of the earth in a region called the hypocenter.

During an earthquake, one part of a seismograph remains stationary and one part moves with the earth's surface.

The earthquake is then measured by the difference in the positions of the still and moving parts of the seismograph.

Researchers with the French Geological Survey (BRGM) say it could be a signal that magma beneath the volcanic island is shifting offshore.

Others say there may have been a 'slow' earthquake that simply went by unnoticed, or an underwater eruption.

The experts say the complex geology of the region further compounds the issue, potentially filtering some of the waves to make the clean signal, NatGeo reports.

Scientists plan to survey the ocean to find out any additional information that could help to explain the mysterious phenomenon.

But at this stage, the experts agree there's just too much we don't know to say what was really to blame.



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