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Seismologist Göran Ekström of Columbia University told National Geographic: "I do not think I have seen anything like it."
<p clbad = "canvas-atom-canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "The researchers think that it is linked to a former "Swarm" of earthquakes "data-reactid =" 24 "> The researchers think this is related to a previous event. "Swarm" of earthquakes off the archipelago of Mayotte in the Indian Ocean.
The researchers detected a strange, long, flat vibration in the region, described as an "atypical low-frequency signal."
<p clbad = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "TO FOLLOW: & nbsp; Dominic Raab and David Davis, former secretaries of Brexit, jointly rewarded with the prize of the best resignation
TO FOLLOW: & nbsp; The letting agent in London "asked for money from potential tenants to view the properties""data-reactid =" 26 ">FOLLOW: Brexit Ex-Secretaries Dominic Raab and David Davis Recognized for Best Joint Resignation Award
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The signal was repeated every 17 seconds and lasted about 20 minutes.
Nicolas Taillefer, head of the Seismic and Volcanic Risks Unit at the Bureau of Geological Research (BRGM), said: "There are many things we do not know. This is something quite new in the signals of our stations. "
The researchers think that this could be linked to a huge magma movement under the Indian Ocean, and say that the Mayotte islands have actually moved 2.4 inches.
The BRGM states: "These observations therefore support the hypothesis of a combination of tectonic and volcanic effects explaining a geological phenomenon involving a seismic sequence and a volcanic phenomenon.
"This hypothesis will have to be confirmed by future scientific studies."
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