AN UNINTENTIONAL ROOF FALL OCCURRED IN THE FACE OF THE #4 ENTRY AT #2 BREAK. SIZE OF FALL WAS ESTIMATED TO BE 25'L X 18-20'W X 7'H. AREA HAD BEEN SUPPORTED WITH 6' TENSION REBAR BOLTS WITH SUP PLEMENTAL SUPPORT CONSISTING OF 10' ROPE BOLTS. NO INJURIES, VENTILATION WAS NOT INTERRUPTED, NO EQUIPMENT CAUGHT. FALL WAS CLEANED UP.