@misc{indiciae3ba32fc80139,
  title = {Early warning system for aftershocks},
  author = {W. H. Bakun and F.G. Fischer and E.G. Jensen and J. VanSchaack},
  year = {1994},
  doi = {10.1785/bssa0840020359},
  url = {https://pubs.usgs.gov/publication/70186217},
  note = {Source identifier: 70186217}
}