@misc{indiciae87fa31279859,
  title = {Seismotectonic map of the Eastern United States},
  author = {Jarvis B. Hadley and James F. Devine},
  year = {1974},
  doi = {10.3133/mf620},
  url = {https://pubs.usgs.gov/publication/mf620},
  note = {Source identifier: mf620}
}