- Scientists discovered a series of mysterious deep earthquakes occurring in the Earth’s upper mantle below northern Utah, challenging conventional geology.
A mysterious earthquake deep below northern Utah had scientists scratching their heads back in 1979. The rumble seemingly occurred far lower beneath the Earth’s crust than scientists had believed was possible.
The tremor may not have been particularly strong, at a magnitude of 3.8, but the recorded seismic data threw experts for a loop nonetheless. The data suggested the rumbling had occurred over 55 miles below sea level, a depth that made no sense in conventional geology.
“I did some other analysis that convinced me of the reality of the deep depth but it was hard to convince others of the highly anomalous mantle earthquake occurring in a region where none should exist,” said George Zandt, who was a University of Utah seismology researcher at the time and helped record the unusual quake, in a new statement…