| Project/Area Number |
15K13971
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | University of Toyama |
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Principal Investigator |
Fujii Masafumi 富山大学, 大学院理工学研究部(工学), 准教授 (60361945)
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| Co-Investigator(Renkei-kenkyūsha) |
ANDO Akio 富山大学, 大学院理工学研究部, 教授 (00545668)
TAHARA Minoru 富山大学, 大学院理工学研究部, 助手 (40242482)
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2015: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
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| Keywords | 電磁波 / 地震 / 表面プラズマ波 / 電磁波伝搬 / 地震電磁気学 / 地震前兆現象 / 地殻応力 |
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| Outline of Final Research Achievements |
To explore the possibility of short-term prediction of earthquakes by means of an electromagnetic approach, we have analyzed theoretically the anomalous propagation of electromagnetic waves to out-of-sight distant places before earthquakes. On or before earthquakes, electrical charges are generated by the stress change on the earth’s crust, and appear on the surface of the earth. The surface charges then interact with electromagnetic waves in air, couple strongly with the waves as a surface plasma wave, and further, diffract and scatter the electromagnetic waves, resulting in an electromagnetic wave reaching to a far place. We verified this phenomenon numerically by considering the actual mountainous landform. We have also started observation of electromagnetic waves with the method based on the new theory.
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