A Mystery Seismic Wave Just Swept Earth—But Scientists Can’t Work out Why

A mystery seismic wave just swept Earth-but scientists can’t work out why

Scientists are baffled by a strange seismic ripple that traveled around the globe the morning of November 11. Seismic waves buzzed sensors from Africa to New Zealand and Hawaii for about 20 minutes, but it seems no humans felt the bizarre ripple, National Geographic reported. Twitter user matarikipax spotted the strange motion on U.S.