@misc{indiciaef48c02613145,
  title = {Preliminary report on the geologic events associated with the May 31, 1970, Peru earthquake},
  author = {George Edward Ericksen and George Plafker and Jaime. Fernandez Concha},
  year = {1970},
  doi = {10.3133/cir639},
  url = {https://pubs.usgs.gov/publication/cir639},
  note = {Source identifier: cir639}
}