title: Strain-softening instability model for the san fernando earthquake.
abstract: Changes in the ground elevation observed before and immediately after the 1971 San Fernando, California, earthquake are consistent with a theoretical model in which fault zone rocks are strain-softening after peak stress. The model implies that the slip rate of the fault increased to aboul 0.1 meter per year near the focus before the earthquake.
authors.forename: W D
authors.initials: WD
authors.lastname: Stuart