| Co-Investigator(Kenkyū-buntansha) |
廣瀬 仁 神戸大学, 都市安全研究センター, 准教授 (00465965)
波多野 恭弘 大阪大学, 理学研究科, 教授 (20360414)
氏家 恒太郎 筑波大学, 生命環境系, 准教授 (40359188)
望月 公廣 東京大学, 地震研究所, 教授 (80292861)
井出 哲 東京大学, 大学院理学系研究科(理学部), 教授 (90292713)
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| Budget Amount *help |
¥45,500,000 (Direct Cost: ¥35,000,000、Indirect Cost: ¥10,500,000)
Fiscal Year 2020: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2019: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2018: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
Fiscal Year 2017: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Fiscal Year 2016: ¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
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| Outline of Final Research Achievements |
We succeeded in discovering a new type of slow earthquakes in the offshore area, which was difficult to observe until now, and in the frequency band that overlaps with microseism noise. We have reached the basic understanding that the slow earthquake is an "ultra-broad band phenomenon" that extends from the band of low frequency tremor to the band of slow slip event, and that "inhomogeneity" and "water" play important roles in its occurrence. In addition, in collaboration with geology, the geological reality of slow earthquakes has been clarified, and modeling has progressed to explain various characteristics of slow earthquakes.
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