Murray Energy is an abomination! The "seismic bump" at the Crandall Canyon Mine in 2007 was anything but a naturally occurring event. Here is why Murray is so mad....he was heavily [at least by industry standards] fined for the lack of safety in the mine.
http://www.dol.gov/opa/media/press/msha/MSHA20121964.htm#.UJ1W5WcSRhEBasically, the company did not leave enough coal
in situ to maintain the structural integrity of the mine. Coal occurs in seams, often "sandwiched" between two sandstone beds. Modern underground coal mining is usually done by the longwall method. Some of the coal is left behind to act as support columns [mining term is pillar] for the sandstone back [the mining term for roof is "back"]. Murray Energy did not comply with generally accepted standards for structural support. They purposely chose to mine the coal and subject their employees to danger because leaving coal behind cut into the company's profit. The miners were robbing the coal pillars as they worked their way out of the mined-out area when the roof collapsed on them. The MSHA employee was attempting to get to the miners as part of the rescue attempt when a rock burst killed him and two other rescuers. The bodies of the six non-union coal miners were never recovered.
Part of my surveying practice is underground surveying. Under the Mine Heath Safety Act (MSHA) I am required to have 40 hours of safety training specific to underground mine hazards. I must complete an 8-hour safety refresher each year. The folks that I get my training from are mostly retired MSHA employees. The Crandall Canyon Mine disaster was part of my 8-hour refresher course because some of the instructors had participated in the accident review done by MSHA. This is a very sad situation where the Bush Administration was pressured by Murray to get the MSHA management to approve the risky plan. Murray initially tried to deflect blame for the "accident" by blaming it on an earthquake. The USGS did note a small earthquake at the time of the accident. The "earthquake" recorded by the USGS was in fact the mine collapse!
A reputable news outlet would have captioned the headline as,
102 workers saved from working in unsafe mine(s)!!!!!!
I would never personally step into a Murray Energy, Corp. mine. No way in hell.