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Earth, Planets and Space
Fig. 2. | Earth, Planets and Space

Fig. 2.

From: Interplate fault slip along the Japan Trench before the occurrence of the 2011 off the Pacific coast of Tohoku Earthquake as inferred from GPS data

Fig. 2.

Coseismic and postseismic observed displacements and estimated slip distribution. (a) 2005 Miyagi-ken oki earthquake Mj 7.2 (August 16, 2005); (b) 2008 Ibaraki-ken oki earthquake Mj 7.0 (May 8, 2008); (c) 2008 Fukushima-ken oki earthquake Mj 6.9 (July 19, 2008); and (d) 2010 Fukushima-ken oki earthquake Mj 6.7 (March 14, 2010). (e) Coseismic observed displacements and estimated slip distribution of the 2011 Sanriku oki earthquake Mj 7.3 (March 9, 2011). Black arrows and contours represent coseismic displacements and slip, and colored ones represent postseismic displacements and slip in each panel, respectively. The contour interval of each coseismic and postseismic slip is 2 cm in panels (b), (c), and (d), 5 cm in panels (a) and (e). Also, the arrows scale is 3 cm in panels (a), (c), and (e) and 1 cm in panels (b) and (d). Broken lines indicate isodepth contours of the plate interface with 20-km intervals (Nakajima and Hasegawa, 2006). Stars indicate the epicenter of each earthquake. Postseismic period is (a) 2.72 years; 20050817–20080507, (b) 0.19 years; 20080509–20080718, (c) 1.65 years; 20080720–20100313, and (d) 0.98 years; 20100315–20110308 (see also Table 1).

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