@misc{indiciae7712f5df96dc,
  title = {Preliminary determination of epicenters; monthly listing; July-September 1999},
  author = {National Earthquake Information Center},
  year = {1999},
  doi = {10.3133/ofr99600c},
  url = {https://pubs.usgs.gov/publication/ofr99600C},
  note = {Source identifier: ofr99600C}
}