@misc{indiciae41c6ffdff291,
  title = {Table-top earthquakes; a demonstration of seismology for teachers and students that can be used to augment lessons in earth science, physics, math, social studies, geography},
  author = {J.C. Lahr},
  year = {1998},
  doi = {10.3133/ofr98767},
  url = {https://pubs.usgs.gov/publication/ofr98767},
  note = {Source identifier: ofr98767}
}