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Earth, Planets and Space
Fig. 6. | Earth, Planets and Space

Fig. 6.

From: Detailed stress fields in the focal region of the 2011 off the Pacific coast of Tohoku Earthquake—Implication for the distribution of moment release—

Fig. 6.

(a) and (d): Slip models with the large moment release near the hypocenter and the trench axis, respectively. Numerals attached to the contour lines represent the slip amount in meters. (b) and (e): Stress changes represented as directions and magnitudes of deviatoric principal stresses projected on the horizontal plane in the footwall at a depth of 10 km under the plate boundary. (c) and (f): Stress changes in the hanging wall at the depth of 1 km below the surface. The stress changes shown in (b) and (c) and (e) and (f) are calculated from the slip models of (a) and (d), respectively. Black and red represent the maximum and mimimum deviatoric principal stresses, respectively. Blue and green represent the medium deviatoric principal stress in the compressional and tensile direction, respectively.

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