Resuspended ash and dust blowing across the northwest flank of Pavlof Volcano, July 17, 2017. Diffuse plumes of resuspended ash and dust were being lofted by the wind to heights of 8,000-10,000 ft while the area was visited by AVO scientists. It is possible that this phenomenon may have been the source of pilot reports of ash emission at Pavlof in June-July 2017.
Image courtesy of AVO/USGS.