| Presentation | 1997/11/17 Anomalies in the characteristics of Earth-ionosphere VLF propagation, associated with earthquakes N. Yamamoto, M. Hayakawa, E. Kawai, O.A. Molchanov, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The most promising candidate for earthquake prediction is the use of subionospheric VLF propagation. We have found significant signatures for The Kobe earthquake by paying attention to the terminator times (The time of minimum in phase (and/or in amplitude) around sunrise and sunset). We have examined the total 11 events (including the Kobe) during 13 years on the basis of the data observed at Inubo for Tsushima Omega VLF signals. The result is as followes; (1) For crustal earthquakes (d<20km) within the 1st Fresnel zone, 3 events from the 4 exhibited significant anomalies in the terminator times and (2) for deep-focus earthquakes none from the four exhibited any VLF anomaly. This result would be important in considering the generation mechanism of such VLF anomalies. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | earthquake / predicting the earthquakes / subionospheric VLF propagation |
| Paper # | SANE97-79 |
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| Conference Information | |
| Committee | SANE |
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| Conference Date | 1997/11/17(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Space, Aeronautical and Navigational Electronics (SANE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Anomalies in the characteristics of Earth-ionosphere VLF propagation, associated with earthquakes |
| Sub Title (in English) | |
| Keyword(1) | earthquake |
| Keyword(2) | predicting the earthquakes |
| Keyword(3) | subionospheric VLF propagation |
| 1st Author's Name | N. Yamamoto |
| 1st Author's Affiliation | The Univ. of Electro-Communications() |
| 2nd Author's Name | M. Hayakawa |
| 2nd Author's Affiliation | The Univ. of Electro-Communications |
| 3rd Author's Name | E. Kawai |
| 3rd Author's Affiliation | Inubo Radio Observatory, Communication Res. Lab. |
| 4th Author's Name | O.A. Molchanov |
| 4th Author's Affiliation | National Space Development Agency of JAPAN |
| Date | 1997/11/17 |
| Paper # | SANE97-79 |
| Volume (vol) | vol.97 |
| Number (no) | 377 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |