“Never Seen Anything Like It” – Scientists Baffled By Strange Seismic Waves Rocking The Globe | Zero Hedge

Low-frequency waves shook the entire Earth for about 20 minutes that day, but scientists now believe they know what caused that strange phenomenon…
— Read on www.zerohedge.com/news/2018-12-01/never-seen-anything-it-scientists-baffled-strange-seismic-waves-rocking-globe