Scientists Detected Strange Rumbling Beneath Utah Almost 50 Years Ago. They Just Figured Out What It Was — Live Feedhttps://www.live-feeds.com/feed/scientists-detected-strange-rumbling-beneath-utah-almost-50-years-ago-they-just-figured-out-what-it-wasContinuously updated, source-cited coverage. Scientists Confirm 'Impossible' Deep Utah Earthquake Was Realhttps://www.live-feeds.com/feed/scientists-detected-strange-rumbling-beneath-utah-almost-50-years-ago-they-just-figured-out-what-it-washttps://www.live-feeds.com/feed/scientists-detected-strange-rumbling-beneath-utah-almost-50-years-ago-they-just-figured-out-what-it-was#u1123Tue, 16 Jun 2026 11:31:09 +0000A rare earthquake detected nearly 50 years ago beneath northern Utah—once dismissed as implausible—has been confirmed as a real, deep mantle event. Researchers now identify it as part of a previously unknown class of continental mantle earthquakes occurring far deeper than expected. The discovery challenges long-held assumptions about seismic activity in Earth’s upper mantle. New analysis of decades-old seismic data supports the finding.What's confirmed:A mysterious earthquake detected beneath northern Utah in 1979 was real and occurred nearly 90 kilometers underground—far deeper than typical