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North-to-south rupture simulations at the intersection of the South San Andreas Fault and a normal fault

Detailed Description

North-to-south (N2S) rupture simulations with oblique (−45°; panels a–d) and left-lateral (0°; panels e–h) normal fault (NF) pre-stress. In the left column (panels a, b, e, and f), the San Andreas (SSAF) ends at the intersection with the NF, while in the right column (panels c, d, g, and h), the San Andreas (SSAF-EXT) “extends” south of the SSAF-NF intersection. The first and third rows represent experiments with S = 0.45 on both faults, while for the second and bottom rows S = 2.0. The rotation of the initial direction of NF shear stress to include a left-lateral component disrupts the ability of the San Andreas to trigger slip on the normal fault relative to the pure normal faulting cases. From the study "Exploring the dynamic interactions between the Southern San Andreas Fault and a normal fault under the Salton Sea".

Sources/Usage

Public Domain.

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