@misc{indiciae60c5a0d619fb,
  title = {Radiocarbon dates indicate rates of graben downfaulting, San Jacinto Valley, California},
  author = {B. E. Lofgren and Meyer Rubin},
  year = {1975},
  url = {https://pubs.usgs.gov/publication/70232657},
  note = {Source identifier: 70232657}
}