Fig. 11

Iterative joint inversion and fault orientations for the event listed in Additional file 1: Table S1 (a) for all events 1–136, (b) for events 1–35 that represent the activity on the NE fault trend and the foreshock stage, and (c) for events 36–136 that represent the activity on the NW fault trend and the foreshock–mainshock and aftershock stages. N is the number of realizations of random noise for accuracy estimates and R is the shape (stress) ratio, respectively, as shown in the shape ratio plot. Parameters σ₁, σ₂, and σ₃ are of the principal stresses as shown in stress and Mohr plots. In Mohr's circles the red lines are inclined depending on the value of friction, representing by tan⁻¹(μ)