@misc{indiciae69540e1053c0,
  title = {Preliminary determination of epicenters, monthly listing: July - September, 1987},
  author = {National Earthquake Information Center},
  year = {1988},
  doi = {10.3133/ofr87786c},
  url = {https://pubs.usgs.gov/publication/ofr87786C},
  note = {Source identifier: ofr87786C}
}