@misc{indiciae129b8a031e29,
  title = {Seismic subduction of the Nazca Ridge as shown by the 1996-97 Peru earthquakes},
  author = {W. Spence and C. Mendoza and E.R. Engdahl and G. L. Choy and E. Norabuena},
  year = {1999},
  url = {https://pubs.usgs.gov/publication/70022054},
  note = {Source identifier: 70022054}
}