“We’ve issued a closure order so the entire mine is shut down. We will conduct a thorough investigation and we will not allow it to reopen until we are sure it is safe.”-Amy Louviere, U.S. Mine Safety and Health Administration

On December 14, another rock burst struck the unlucky Lucky Friday silver mine in northern Idaho.  This time no one was killed.  Just last month, November, a miner was killed trying to free a stuck rock bin.  In April, a rock burst killed one miner.

Officials are concerned with the sudden occurrence of rock bursts in the mine.  For the past 25 years there had been no reported fatal accidents at the Lucky Friday mine.  Also of interest, there was no mining activity taking place 24 hours prior to the December 14 rock burst, that could have caused such a collapse.

There is now speculation that what is happening is the result of increased seismic activity in the northern part of Idaho.  (anyone remember the movie Dante’s Peak?)

Regarding the death in April, the U.S. Mine Safety and Health Administration blamed the mine’s owners, Helca Mining Company, for lax safety standards.  However, December 14’s rock burst took place while miners were trying to install a safety net designed to protect miners from such rock bursts.

Federal officials don’t know how long their investigation will take place.  At least 300 people in the small community of Mullen, Idaho, rely on the mine for high paying jobs.