A 3.9 magnitude temblor recorded at the time of a mine collapse in southern Utah on Monday, Aug. 6, was not from an earthquake, but more likely the result of the collapse itself, according to an analysis by University of California, Berkeley, seismologists.
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Tiny tremors and temblors recently discovered in fault zones from California to Japan are generated by slow-moving earthquakes that may foreshadow catastrophic seismic events, according to scientists at Stanford University and the University of Tokyo.
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