On April 29, 2007 AM a rock burst occurred at the Galena mine. The morning of April 30, 2007 at approx. 7:35 AM I was notified by the crew of the 226 stope that they had discovered the location of the burst. It occurred in the 226 raise. The crew immediately vacated the area to wait for their supervisor. At 7:37 AM I notified the Boise MSHA office & at 7:47 AM the MSHA 1 Call line.