Subionospheric VLF/LF probing of ionospheric perturbations associated with earthquakes (earthquake prediction)

Author

Hayakawa, Masashi

Author_Institution

Dept. of Electron. Eng. & Res. Station on Seismo Electromagn., Univ. of Electro-Commun., Chofu

fYear

2008

fDate

20-22 Aug. 2008

Firstpage

1668

Lastpage

1671

Abstract

The VLF/LF receiving network is established in Japan (and also Kamchatka, Taiwan and Indonesia) composed of seven observing stations (Moshiri (Hokkaido), Chofu (UEC), Tateyama (Chiba), Shimizu, Kasugai (Nagoya) and Kochi). At each station we observe simultaneously several VLF/LF transmitter signals (Japanese JJI (40 kHz, Fukushima), JJI (Ebino, Kyusyu), and foreign VLF transmitters (NWC (Australia), NPM (Hawaii), NLK (USA). This Japanese VLF/LF network is used to study the ionospheric perturbations associated with earthquakes, and we present a few case studies (like Niigata Chuetsu earthquake, Sumatra earthquake) and statistical studies on the correlation between ionospheric perturbations (in the form of VLF/LF propagation anomaly) and earthquakes.

Keywords

earthquakes; geophysical signal processing; ionospheric electromagnetic wave propagation; ionospheric techniques; radiowave propagation; seismology; Chofu; Japan; Kasugai; Kochi; Moshiri; Shimizu; Tateyama; earthquake prediction; earthquakes; ionospheric perturbations; subionospheric VLF/LF probing; transmitter signals; Australia; Earthquake engineering; Electromagnetic measurements; Electromagnetic scattering; Electronic mail; Ionosphere; Mechanical variables measurement; Motion measurement; Radio transmitters; Sprites (computer); VLF/LF propagation; earthquake; earthquake prediction; ionospheric perturbations;

fLanguage

English

Publisher

ieee

Conference_Titel

SICE Annual Conference, 2008

Conference_Location

Tokyo

Print_ISBN

978-4-907764-30-2

Electronic_ISBN

978-4-907764-29-6

Type

conf

DOI

10.1109/SICE.2008.4654931

Filename

4654931