@misc{indiciae251012911608,
  title = {The San Fernando, California, earthquake of February 9, 1971; a preliminary report published jointly by the U.S. Geological Survey and the National Oceanic and Atmospheric Administration},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1971},
  doi = {10.3133/pp733},
  url = {https://pubs.usgs.gov/publication/pp733},
  note = {Source identifier: pp733}
}