@book {CaltechAUTHORS_https://authors.library.caltech.edu/id/eprint/35664, title ="Southern California Seismographic Network; report to the U.S. Geological Survey, August 21, 1990", author = "Hauksson, Egill and Jones, Lucile and Mori, James and Clayton, Robert and Heaton, Thomas and Kanamori, Hiroo and Helmberger, Don", number = "91-38", month = "January", year = "1991", url = "https://resolver.caltech.edu/CaltechAUTHORS:20121127-093130762", }