…on 11/11, where mysterious seismic waves traveled 11,000 miles across the world for 17 seconds. Q knows.

https://twitter.com/StormIsUponUs/status/1069053062604455937

Strange seismic waves that rippled around world leave scientists bewildered

The bizarre waveform is what scientists call “monochromatic”. Earthquakes normally produce waves of so many different frequencies, the wave readings appear more jumbled.

But the mystery waveform from Mayotte was a crisp zigzag, which repeated after steady 17-second intervals.

“They're too nice. They're too perfect to be nature,” joked the University of Glasgow’s Helen Robinson, who is study for a PhD in applied volcanology.

https://www.independent.co.uk/news/world/earthquake-seismic-waves-mayotte-madagascar-volcanic-activity-science-a8659236.html?amp&__twitter_impression=true