@misc{indiciae990004299461,
  title = {Earthquakes in the United States, April-June 1977},
  author = {J. H. Minsch and Carl W. Stover and R. B. Simon},
  year = {1979},
  doi = {10.3133/cir788b},
  url = {https://pubs.usgs.gov/publication/cir788B},
  note = {Source identifier: cir788B}
}