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

Yahoo News UK29 November 2018

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 Göran Ekström from Columbia University told National Geographic ‘I don’t think I’ve seen anything like it.’

Researchers believe it’s linked to a previous ‘swarm’ of earthquakes off the coast of the archipelago of Mayotte in the Indian Ocean.

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

The signal repeated every 17 seconds, lasting for about 20 minutes.[😁😁can it be a signal from outer space?Aliens?😁😁]

Nicolas Taillefer, head of Bureau de Recherches Géologiques (BRGM) seismic and volcanic risk unit, said, ‘There are a lot things we don’t know. It’s something quite new in the signals on our stations.’

The researchers think it may be related to a huge movement of magma under the Indian Ocean, and say that the islands of Mayotte have actually moved 2.4 inches.

The BRGM says, ‘These observations therefore back up the hypothesis of a combination of tectonic and volcanic effects accounting for a geological phenomenon involving a seismic sequence and a volcanic phenomenon.

‘This hypothesis will need to be confirmed by future scientific studies.’

[include-Darwin's MONKEY to Mankey theory]

This is a most odd and unusual seismic signal. Recorded at Kilima Mbogo, Kenya ... #earthquake https://earthquake.usgs.gov/static/earthquake-network-operations/Seismic_Data/telemetry_data/KMBO_24hr.html …

4:06 AM - 11 Nov 2018

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and here at Lusaka, Zambia ... https://earthquake.usgs.gov/static/earthquake-network-operations/Seismic_Data/telemetry_data/LSZ_24hr.html …

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and at Mt. Furi, Ethiopia ... https://earthquake.usgs.gov/static/earthquake-network-operations/Seismic_Data/telemetry_data/FURI_24hr.html …

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San Pablo, Spain ... https://earthquake.usgs.gov/static/earthquake-network-operations/Seismic_Data/telemetry_data/PAB_24hr.html …

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and here in Wellington, New Zealand ... https://earthquake.usgs.gov/static/earthquake-network-operations/Seismic_Data/telemetry_data/SNZO_24hr.html …

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The signal can be seen all around the world at this URI, but only for the day. https://earthquake.usgs.gov/monitoring/operations/heliplot.php …

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It looks like two or more frequencies mixed ...

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Jamie Gurney @UKEQ_Bulletin

Narrowing the location down the origin area appears to be in the region of the Comoros/Mayotte. A news article today suggests that the Mayotte swarm which began earlier this year may indeed be magmatic-related. Was this event a submarine volcanic eruption? …

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1 reply 9 retweets 17 likes

Anthony Lomax

@ALomaxNet

SBV, like the other stations, shows long monochromatic signal with ~17s period (mono-freq Rayleigh waves?). But filtered above 1Hz SBV (lower plot) also shows seismic(?) signals from repeating sources, with…

1 reply 9 retweets 22 likes

Jamie Gurney @UKEQ_Bulletin

What is interesting is that a similar signal to today's cannot be seen for the Havre event in 2012 at Raoul Island or East Cape in New Zealand, as would be expected. I have no idea if a similar global signal of this nature has ever been observed.

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Dr Robin George Andrews @SquigglyVolcano

Huh. Mayotte's strange double-shield volcano's last known eruption (per the Smithsonian) was 2,050 BCE!

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Anthony Lomax

@ALomaxNet

Assuming epicenters just east of Mayotte, high-frequency (lower trace) arrivals at SBV correspond well to P & S from at least 3 sources resembling tectonic earthquakes, & the long period wave train (upper…

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Helen Robinson @Geology_Helen

#geothermal community working #Comoros we have an extended seismic signal originating from Mayotte area. Has anyone got eyes-on for a possible eruption @WING_geothermal @wing_africa @GDCKenya @GAK_Kenya @KenGenKenya @IRENA @lovegeothermal …

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Replying to @matarikipax

＞“…#Unusual #Seismic Signal”.@NatGeo-Maya＞SuperSlow-EQ=#EarthQUAKE(W迆 17secs P-Wave)Began UTC

㏂11Nov2018 For20mins Rippled Entire

This Mag~5 EQ OccrdClos2 #Mayotte,FR-island,NorthrnTip Madagascar

4000yrs

Was inActive. Cause:Unknown, Prolly:SubSurface-Shift #infoSec

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Replying to @matarikipax

Its a voice, or song.

2 replies 8 likes

Or a cry for help?

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Replying to @matarikipax

We had this in Canada the same week.

CBC Canadian NewsVerified account @CBCCanada

Seismic records show Newfoundland was literally shaking from wind and waves https://www.cbc.ca/news/canada/newfoundland-labrador/seismic-records-wind-storm-shake-1.4908372?cmp=rss …

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Replying to @matarikipax

Seems as some group made a DragonBall-Z-level meditation on 11th of the 11th of the 11th (2+0+1+8=11)... where could it have been 11:11 at the time that double helix spiral started?

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