@misc{indiciaea256e8701686,
  title = {Aftershocks preferentially occur in previously active areas},
  author = {Morgan T. Page and Nicholas van der Elst},
  year = {2022},
  doi = {10.1785/0320220005},
  url = {https://pubs.usgs.gov/publication/70231607},
  note = {Source identifier: 70231607}
}