Some readers have been emailing me about the Utah mine disaster saying the mine owners are using some seriously fishy arguments. I am in no way shape or form a geologist, but after reading the coverage of the Utah mine collapse I can’t help thinking the CEO saying it was an earthquake – not a mine collapse caused by unsafe practices – comes across as someone being deceptive.
Scientists believe the seismic waves in the area of the Crandall Canyon mine were “the signature of the collapse and that the collapse was not caused by an earthquake,” said James W. Dewey, a seismologist at the National Earthquake Information Center in Golden, Colo.
Scientists have not ruled out a natural earthquake since the region surrounding the mine is seismically active, and they do not know the exact time the mine collapsed.
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On Monday, University of Utah seismographs recorded seismic waves of 3.9 magnitude near the mine. At least 10 aftershocks were felt more than 24 hours after the collapse, with the strongest registering 2.2 magnitude.
Scientists say quakes caused by mine collapses tend to occur at shallower depths and at different frequencies than natural earthquakes.
The first motions of the Utah disturbance indicated a downward movement consistent with a collapse, scientists said. If it was a natural quake, it would have produced up and down motions on the seismograms. The quake occurred anywhere from 2,000 to 8,500 feet underground.
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Mine officials insisted Monday’s accident was caused by a natural disaster.
“This was caused by an earthquake, not something that Murray Energy … did or our employees did or our management did,” an irate Robert E. Murray, chairman of mine owner Murray Energy Corp. of Cleveland, said at a televised news conference. “It was a natural disaster. An earthquake. And I’m going to prove it to you.”
Then it gets a little disturbing. Usually with industry denialism, it’s things like cherry-picking and other tactics to create a deceptive picture. You need plausible deniability when the full story comes out. However, this Murray guy seems to just be pulling data out of thin air.
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