Identify this South American earthquake that was felt in the US & Canada
June 15, 2020 7:01 PM Subscribe
An earthquake that occurred in South America in the 1990s was felt in the northern US and Canada -- because the quake was unusually deep, seismic waves had propagated through the Earth's mantle and surfaced thousands of miles away. I remember feeling a strong swaying motion in Minnesota and reading news reports about it affecting Ontario too, so maybe there was some interaction with the Canadian Shield? Where and when exactly was this earthquake? Bonus points for links to interesting articles or scientific papers about the event.