@misc{indiciae9883bc28a766,
  title = {Earthquakes in the United States, April-June 1978},
  author = {J. H. Minsch and Carl W. Stover and P. Hubiak},
  year = {1980},
  doi = {10.3133/cir819b},
  url = {https://pubs.usgs.gov/publication/cir819B},
  note = {Source identifier: cir819B}
}