@misc{indiciae1a9d5ed4243f,
  title = {Advanced National Siesmic System delivers improved information},
  author = {S.A. Sipkin and J.R. Filson and H.M. Benz and D.J. Wald and P.S. Earle},
  year = {2006},
  url = {https://pubs.usgs.gov/publication/70028461},
  note = {Source identifier: 70028461}
}