@misc{indiciaed21f75914320,
  title = {Seismic intensities of earthquakes of conterminous United States– Their prediction and interpretation},
  author = {J. F. Evernden and W.M. Kohler and Gary D. Clow},
  year = {1981},
  doi = {10.3133/pp1223},
  url = {https://pubs.usgs.gov/publication/pp1223},
  note = {Source identifier: pp1223}
}