Jess Larsen examines a tephra section north of Pavlof and Pavlof Sister during tephrostratigraphic work at Pavlof Volcano, July 2018. This station, 18JFLPV041, is approximately 20 km north of Pavlof.
Image courtesy of the AVO/ADGGS.
Please cite the photographer and the Alaska Volcano Observatory / Alaska Division of Geological & Geophysical Surveys when using this image. Full Resolution.