A LIBERATION OF METHANE FROM A MINE FLOOR CRACK OCCURRED ON THE 5 EAST LONGWALL SECTION (MMU-011-0) IN THE TAILGATE ENTRY & AT THE MOST INBY SHIELD. ALL PERSONNEL EXCEPT THOSE REQUIRED TO CORR ECT THE SITUATION WERE EVACUATED FROM THE MINE. (THIS FORM IS FILLED IN PROTEST - WE DO NOT CONSIDER THIS AN ACCIDEN AS DEFINED IN 30CFR 50.2LH THEREFORE NOT REPORTABLE.