@misc{indiciaeaf0db4a7bd0d,
  title = {A preliminary assessment of the recent increase in earthquake activity in the Los Angeles region},
  author = {L.M. Jones and P.A. Reasenberg},
  year = {1989},
  doi = {10.3133/ofr89162},
  url = {https://pubs.usgs.gov/publication/ofr89162},
  note = {Source identifier: ofr89162}
}