@misc{indiciaeeca448227160,
  title = {Preliminary determination of epicenters; monthly listing, April-June 2000},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {2001},
  doi = {10.3133/ofr00600b},
  url = {https://pubs.usgs.gov/publication/ofr00600B},
  note = {Source identifier: ofr00600B}
}