Unusual Seismic Waves Shook The Earth On Nov. 11 & Scientists Still Don’t Completely Know Why

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For 20 minutes on Nov. 11, 2018, strange seismic waves reverberated around the Earth for nearly 11,000 miles ‘ and we have no idea what they were. No one felt them; nothing was destroyed by them; if it wasn’t for the data collected by various tools and sensors around the world, we might never even have known they had happened. Scientists are hard at work unraveling the mystery as we speak ‘ and they’re starting to have some idea of what might be going on, so it’s perhaps not quite fair to say that “we have no idea what they were” anymore ‘ but the work is ongoing. I love a good weird science mystery, so let’s take a look, shall we?

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Mystery of the strange seismic waves that shook the world on November 11

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.

Unusual Seismic Waves Shook the World on Nov. 11, and Scientists Aren’t Sure Why

Unusual seismic waves rippled across the world earlier this month, triggering speculation about their cause.

The waves started Nov. 11 about 15 miles off the coast of Mayotte, a French island in the Indian Ocean near Madagascar and the African continent, before it went across Africa and pinged sensors in Ethiopia, Zambia, Kenya, and elsewhere. Then, it went across the Atlantic Ocean, hitting Chile, Canada, Hawaii, New Zealand, and other areas, according to National Geographic.

  • Publisher: www.theepochtimes.com
  • Date: 2018-11-29T12:25:34-05:00
  • Twitter: @EpochTimes
  • Citation: Web link (Learn more)

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Mysterious rippling wave shook Earth this month and scientists don’t know why

On November 11, earthquake sensors around the world picked up something very, very strange ‘ a rippling seismic signal seeming to originate in the Indian Ocean.

Seismologist G’ran Ekstr’m from Columbia University told National Geographic ‘I don’t think I’ve seen anything like it.’

Researchers detected a strange, long and flat vibration from the area, described as an ‘atypical very low frequency signal.’

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Strange waves rippled around the world, and nobody knows why

These waves didn’t just zip by; they rang for more than 20 minutes. And yet, it seems, no human felt them.

Only one person noticed the odd signal on the U.S. Geological Survey’s real-time seismogram displays. An earthquake enthusiast who uses the handle @matarikipax saw the curious zigzags and posted images of them to Twitter. That small action kicked off another ripple of sorts, as researchers around the world attempted to suss out the source of the waves. Was it a meteor strike? A submarine volcano eruption? An ancient sea monster rising from the deep?

  • Publisher: Science & Innovation
  • Date: 2018-11-28T06:00:05-0500
  • Twitter: @NatGeoScience
  • Citation: Web link (Learn more)

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Mystery of the strange seismic waves that shook the world on November 11
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