A ROCKBURST OCCURRED IN THE 5500-31E STOPE AT APPROX. 10:50 PM. THE BURST FOLLOWED A PLANNED DE STRESS ROUND SHOT WITH HE NORMAL STOPE ROUND. THE AREA AFFECTED WAS APPROX. 20 TO 30 FEET FROM T HE FACE INT HE SILL ALONG BOTH THE HANGING AND FOOT WALLS.