The results of recent stress measurements along the San Andreas fault near Palmdale, California, which show a rapid decrease in shear stress in the proximity of the fault, may be due to the stress drop connected with the great 1857 earthquake, superimposed onto a preseismic ground deformation. This suggestion is made on the basis of a fault model where a preseismic phase of stable sliding at depth is responsible, through stress concentration, for the occurrence of seismic ruptures in the upper lithosphere.
Bonafede, M., Boschi, E., Dragoni, M. (1983). Interpretation of a stress profile across the San Andreas fault. ANNALES GEOPHYSICAE, 1(3), 195-198.
Interpretation of a stress profile across the San Andreas fault
Bonafede, Maurizio;Boschi, Enzo;Dragoni, Michele
1983
Abstract
The results of recent stress measurements along the San Andreas fault near Palmdale, California, which show a rapid decrease in shear stress in the proximity of the fault, may be due to the stress drop connected with the great 1857 earthquake, superimposed onto a preseismic ground deformation. This suggestion is made on the basis of a fault model where a preseismic phase of stable sliding at depth is responsible, through stress concentration, for the occurrence of seismic ruptures in the upper lithosphere.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
