A mysterious seismic wave rolled around the world for more than 20 minutes… And yet, it seems, no human felt t hem

A mysterious seismic wave rolled around the world for more than 20 minutes… And yet, it seems, no human felt them

Strange Sounds – Nov 29, 2018
mysterious seismic wave world, Strange seismic waves were picked up circling the globe on November 11. Now seismologists are trying to figure out why
Earthquake, Tremor
On the morning of November 11, just before 9:30 UT, a mysterious rumble rolled around the world. The seismic waves began roughly 15 miles off the shores of Mayotte, a French island sandwiched between..

http://strangesounds.org/2018/11/a-mysterious-seismic-wave-rolled-around-the-world-for-more-than-20-minutes-and-yet-it-seems-no-human-felt-them.html