@misc{indiciaef4cf81253804,
  title = {Preparation of isoseismal maps and summaries of reported effects for pre-1900 California earthquakes},
  author = {Tousson R. Toppozada and Charles R. Real and Stephen P. Bezore and David L. Parke},
  year = {1981},
  doi = {10.3133/ofr81262},
  url = {https://pubs.usgs.gov/publication/ofr81262},
  note = {Source identifier: ofr81262}
}