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Figure 1 | Earth, Planets and Space

Figure 1

From: Pore pressure distribution in the focal region of the 2008 M7.2 Iwate-Miyagi Nairiku earthquake

Figure 1

Orientations of best-fit σ 1 and σ 3 axes. (a) A uniform stress field across the entire study area and (b) 20 subareas divided along and across the fault strike, shown by black lines. σ 1 and σ 3 axes are indicated by red and blue arrows, respectively, at the centroid of events used for the inversions. The length of the arrows indicates the relative plunge of the axes. P-axis orientations are also shown by bars. The length and color (scale is shown at the right) of a bar corresponds to the plunge and azimuth of the P-axes, respectively.

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