@misc{indiciae4b05817127a0,
  title = {Magnitude estimates of two large aftershocks of the 16 December 1811 New Madrid earthquake},
  author = {S. E. Hough and S. Martin},
  year = {2002},
  doi = {10.1785/0120010226},
  url = {https://pubs.usgs.gov/publication/70024133},
  note = {Source identifier: 70024133}
}