@misc{indiciae1c0141720af2,
  title = {The 1989 earthquake swarm beneath Mammoth Mountain, California: An initial look at the 4 May through 30 September activity},
  author = {D.P. Hill},
  year = {1990},
  doi = {10.1785/bssa0800020325},
  url = {https://pubs.usgs.gov/publication/70015810},
  note = {Source identifier: 70015810}
}