2011 Fiscal Year Final Research Report
Statistical physical study of earthquakes as a frictional instability
| Project/Area Number |
21540385
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Mathematical physics/Fundamental condensed matter physics
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| Research Institution | Osaka University |
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Principal Investigator |
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| Project Period (FY) |
2009 – 2011
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| Keywords | 地震 / 非線形物理学 / 摩擦構成則 |
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| Research Abstract |
In this project, toward the construction of statistical physics of earthquakes, we studied the properties of earthquakes based on the spring-block model obeying the rate-and-state dependent friction law now widely used in seismology where the friction depends on the" state" of the sliding interface. We then found that the model exhibits qualitative distinct behaviors depending on whether the frictional instability is either weak or strong.
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