@misc{indiciaeeeedf00fdfa2,
  title = {Holocene traces of the Imperial fault in south-central Imperial County, California},
  author = {Robert V. Sharp},
  year = {1977},
  doi = {10.3133/ofr77815},
  url = {https://pubs.usgs.gov/publication/ofr77815},
  note = {Source identifier: ofr77815}
}