@misc{indiciaec025b8220f98,
  title = {Ground-coupled acoustic airwaves from Mount St. Helens provide constraints on the May 18, 1980 eruption},
  author = {J.B. Johnson and S. D. Malone},
  year = {2007},
  doi = {10.1016/j.epsl.2007.03.001},
  url = {https://pubs.usgs.gov/publication/70170802},
  note = {Source identifier: 70170802}
}