Dilatancy and Compaction of a Rate‐and‐State Fault in a Poroelastic Medium: Linearized Stability Analysis

Faults in the crust at seismogenic depths are embedded in a fluid‐saturated, elastic, porous material. Slip on such faults may induce transient pore pressure changes through dilatancy or compaction of the gouge or host rock. However, the poroelastic nature of the crust and the full coupling of inelastic gouge processes and the host rock have been largely neglected in previous analyses. Here, we present a linearized stability analysis of a...