An Unplanned and Reportable Roof Fall was discovered on 8/18/19 between 15-16 bk in the tailgate entry (#1 entry 30 butt)for the F-9 Longwall panel. A continuation of above mentioned roof fall occurred on 8/19/19 in the 15 bk 2-1 x-cut and intersection. There were no injuries, no equipment damage and the vent. system was not disrupted. Both occurrences were immediately reported.