A mysterious seismic wave shook the Earth and scientists do not know why

<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "On November 11, seismic sensors from around the world were choose something very very strange – a waving seismic signal seems to come from the Indian Ocean. "data-reactid =" 22 "> On November 11, seismic sensors from around the world detected something very, very waving seismic signal seeming to come from the Indian Ocean.

Seismologist Göran Ekström of Columbia University told National Geographic: "I do not think I have seen anything like it".

<p class = "canvas-atom web-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "The researchers think that it is related to a former "Swarm" of earthquakes "data-reactid =" 24 "> The researchers think that this is related to a previous event, off the archipelago of Mayotte, in the Indian Ocean. "Swarm" of earthquakes off the archipelago of Mayotte in the Indian Ocean.

The researchers detected a strange, long and flat vibration in the area, described as an "atypical signal of very low frequency".

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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 thus corroborate 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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