@misc{indiciaef43bf605dde7,
  title = {Preliminary determination of epicenters; monthly listing October-December 1993},
  author = {National Earthquake Information Center},
  year = {1993},
  doi = {10.3133/ofr93600d},
  url = {https://pubs.usgs.gov/publication/ofr93600D},
  note = {Source identifier: ofr93600D}
}