@misc{indiciaed2a1cbee4662,
  title = {United States earthquakes, 1969},
  author = {C. A. von Hake and W.K. Cloud},
  year = {1984},
  doi = {10.3133/ofr84969},
  url = {https://pubs.usgs.gov/publication/ofr84969},
  note = {Source identifier: ofr84969}
}