Alaska Volcano Observatory

Analysis of shoreline changes at Bogoslof volcano due to eruptive activity. The base image is from 24 January 2017 and the shorelines on 30 and 31 January 2017 are noted by the blue and red dashed lines, respectively. Note that the 31 January analysis was conducted after the explosive event on that day. The vent for the 31 January activity is located approximately in what was the northern portion of the bay in the base image.