@misc{indiciae7c21d0560760,
  title = {The intensity of the July 21, 1986, Chalfant Valley, California, earthquake},
  author = {Lindie Brewer},
  year = {1989},
  doi = {10.3133/ofr89135},
  url = {https://pubs.usgs.gov/publication/ofr89135},
  note = {Source identifier: ofr89135}
}