2014 Fiscal Year Final Research Report
Estimation of the Earthquake Early Warning available in Nankai-trough earthquake
| Project/Area Number |
25750147
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Natural disaster / Disaster prevention science
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| Research Institution | Aichi Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Keywords | 緊急地震速報 / 南海トラフ巨大地震 / P波震動 / S波震動 |
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| Outline of Final Research Achievements |
We proposed method to predict S-wave at target site from observed P-wave at reference site due to upgrading the Earthquake Early Warning and inspected applicability of this method. Procedure of this method shown as follow, 1: transfer function is estimated from ratio of P-wave and S-wave calculated based on ray theory, 2: S-wave is calculated by the convolution of observed P-wave and the transfer function. The IIR filter which calculates the transfer function in time domain was estimated because predicted S-wave has to be calculated in real time. As a result, applicability of this method was confirmed by analysis using M5 earthquake. However, we could not confirm applicability to the Nankai trough earthquake because we cannot get simulation waves include P-wave.
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| Free Research Field |
地震工学
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