Crandall Canyon Mine was an underground, bituminous coal mine in northwestern Emery County, Utah, owned by UtahAmerican Energy, a subsidiary of Murray Energy, and was located about 15 miles (24 km) west north-west of Huntington, Utah. On August 6, 2007, at 2:48 A.M., the mine collapsed, trapping 6 workers inside. The workers were approximately 3.4 miles (5.5 km) from the mine entrance and 1500 feet (457 m) underground. The collapse registered recorded seismic waves in magnitude 3.9 to 4.0, by seismograph stations of the University of Utah.[6]
A Mine Safety and Health Administration (MSHA) report the mine was "destined to fail" because the mining company made critical miscalculations and didn't report early warning signs. MSHA itself was faulted by the Department of Labor, of which MSHA is an agency, for lax oversight before the collapse, and for mismanaging the failed rescue attempt.[7]
The largest mining fine until the 2010 Upper Big Branch Mine Disaster was levied against Murray Energy for the Crandall collapse: $1.85 million for 20 citations, including nine that were "contributory."[8]