@misc{indiciae5edbdc9d2f78,
  title = {Preliminary determination of epicenters; monthly listing April-June 1994},
  author = {National Earthquake Information Center},
  year = {1994},
  doi = {10.3133/ofr94600b},
  url = {https://pubs.usgs.gov/publication/ofr94600B},
  note = {Source identifier: ofr94600B}
}