Table 1. Estimated rotation angle, ratio of stress drop to background deviatoric stress, fault strength and pore pressure ratio.
From: Nearly complete stress drop in the 2011 Mw 9.0 off the Pacific coast of Tohoku Earthquake
Region | θ | Δθ | Δτ/τ | τ | λ |
|---|---|---|---|---|---|
A (N part of source area) | 45°(32.5°–47°) | 35°(17.5°–50°) | 0.95(0.9 –1.0) | 21(20 –22) MPa | 94(94 –95)% |
B (S part of source area) | 50°(45°–62.5°) | 27.5°(10° –40°) | 0.9(0.45 –1.0) | 22(20 –44) MPa | 94(88 –95)% |