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The article discusses the results of a study published in the February 2012 issue of periodical "Bulletin of the Seismological Society of America," by geophysicist Gary Fuis and colleagues about the geometric shape of the San Andreas Fault in California. Topics include how the fault's twists may increase risks in certain regions and how tilted faults can create large earthquakes.

Reports on the analysis of seismic and gravity data done by the geophysicists David Hadley and Hiroo Kanamori at the California Institute of Technology, Pasadena, that shows no evidence of roots for southern California's transverse ranges. Speculations of the scientists on the origin of the ranges; Prediction of an uplift by the Hadley-Kanamori concept; Other suggestions of the seismic data.