This occurred on the slope just skier's right of the slope triggered by skiers the day before. It was surprising that this slope hadn't released with that event as they're somewhat connected. I unintentionally remotely triggered this slope from lower angled terrain just above, walking in a track that at least a few other people had walked through. I felt a collapse and the slope below fractured.
Slope had been previously wind loaded, which made the slab thicker and stiffer. Slab was 4F+ at the base, 12/11 FC below were F.