@misc{indiciaedee950b5700b,
  title = {Preliminary isoseismal map for the Sierra Madre, California, earthquake of June 28, 1991 UTC},
  author = {Carl W. Stover and B. Glen Reagor},
  year = {1991},
  doi = {10.3133/ofr91388},
  url = {https://pubs.usgs.gov/publication/ofr91388},
  note = {Source identifier: ofr91388}
}