>11.11.18? waves around the world?
Just before 9.30am on Sunday 11 November, a series of unusual seismic pulses rippled around the world almost undetected.
But the mystery waveform from Mayotte was a crisp zigzag, which repeated after steady 17-second intervals.
The waves rang for over 20 minutes, emanating about 15 miles off the shores of Mayotte - a tiny island in the Indian Ocean between Madagascar and Africa.
“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
https://twitter.com/matarikipax/status/1061590953876582402?s=20