@misc{indiciae0781ebaa19f3,
  title = {Photographs from the U.S. Geological Survey Photographic Library (earthquakes, volcanoes, geologic hazards, and other phenomena)},
  author = {Joseph K. McGregor and C. C. Abston},
  year = {1992},
  doi = {10.3133/ds8},
  url = {https://pubs.usgs.gov/publication/ds8},
  note = {Source identifier: ds8}
}