@misc{indiciaec0e0642cd9d2,
  title = {Preliminary determination of epicenters; monthly listing April-June 1992},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1992},
  doi = {10.3133/ofr92600b},
  url = {https://pubs.usgs.gov/publication/ofr92600B},
  note = {Source identifier: ofr92600B}
}