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Scientists confirm a deep earthquake that shouldn't exist
Scientists have confirmed that a mysterious Utah earthquake first detected in 1979 really did occur nearly 90 kilometers underground—far deeper than anyone thought earthquakes could happen beneath a continent. By reanalyzing decades of seismic data, researchers identified a rare class of "continental mantle earthquakes" occurring deep in Earth’s upper mantle, where rock is expected to slowly flow rather than suddenly break.
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gizmodo.com
‘Anomalous’ Earthquakes Have Hit Utah for Decades. Geologists Are Finally Closing in on an Answer
Researchers have identified a previously unknown type of earthquake that can begin as deep as 55 miles underground.
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sciencedaily.com
Scientists confirm a deep earthquake that shouldn't exist
Scientists have confirmed that a mysterious Utah earthquake first detected in 1979 really did occur nearly 90 kilometers underground—far deeper than anyone thought earthquakes…