| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Research Abstract |
We investigated the postseismic crustal deformation following the 2008 Iwate-Miyagi inland earthquake based on the precise leveling, dense GPS observation, and InSAR data. We investigated the rheological structure in the northeastern Japan arc based on the dense GPS network of far field from the focal region. In contrast, the near field of the focal region of the 2008 event, it is difficult to explain the some of the short-wave length crustal deformation. These anomalies will reflect the long-term aseismic slip in the shallower portion around the coseismic fault. Furthermore, we evaluated an anomalous crustal strain distribution in the Tohoku region associate with a step-like stress change induced by the 2011 Tohoku earthquake (Mw9.0). These strain anomalies may reflect the inhomogeneity of the rheology or stiffness of the crust.
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