@misc{indiciaec42ce67e176e,
  title = {Focal plane solutions of aftershocks to the Oroville earthquake of August 1, 1975},
  author = {M. J. Simirenko and C. Barry Raleigh},
  year = {1977},
  doi = {10.3133/ofr77527},
  url = {https://pubs.usgs.gov/publication/ofr77527},
  note = {Source identifier: ofr77527}
}