@misc{indiciae71077dce1a4b,
  title = {Montana earthquakes noted in pennsylvania mine‐water pools},
  author = {W.B. Hopkins and T.A. Simpson},
  year = {2014},
  doi = {10.1029/tr041i003p00435},
  url = {https://pubs.usgs.gov/publication/70220535},
  note = {Source identifier: 70220535}
}