@misc{indiciae9f8ccec9910d,
  title = {Processed strong-motion data for the El Salvador earthquake of June 19, 1982},
  author = {Kenneth W. Campbell and Sylvester Theodore Algermissen},
  year = {1988},
  doi = {10.3133/ofr88241},
  url = {https://pubs.usgs.gov/publication/ofr88241},
  note = {Source identifier: ofr88241}
}