title: Magnitude of shear stress on the san andreas fault: implications of a stress measurement profile at shallow depth.
abstract: A profile of measurements of shear stress perpendicular to the San Andreas fault near Palmdale, California, shows a marked increase in stress with distance from the fault. The pattern suggests that shear stress on the fault increases slowly with depth and reaches a value on the order of the average stress released during earthquakes. This result has important implications for both long- and shortterm prediction of large earthquakes.
authors.forename: M D
authors.initials: MD
authors.lastname: Zoback
authors.forename: J C
authors.initials: JC
authors.lastname: Roller