| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Outline of Final Research Achievements |
We utilized the S-net cabled OBS system to understand the slow slip and seismicity in the offshore Tohoku. The analysis based on land data revealed periodic occurrence of slow slip and transition between seismic and aseismic slip of fault due to the change in the loading rate. After the waveform database of S-net stations was constructed in 2018, the fast axis of shear wave splitting was estimated to be trench-parallel for the offshore area and small repeating earthquakes are identified by the database. In addition to this, the orientation of S-net sensor was estimated, the performance of deep learning model to estimate the P and S arrivals are evaluated, and the tremor and repeating earthquake distribution was examined to understand the slip mode of the plate boundary.
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