地震波で励起された電磁波による地中媒質の電気的パラメータの算出

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2016/05/01

タイトル(英語): Derivation of Electrical Parameters of Earth's Medium from Electromagnetic Waves Excited by Earthquakes

著者名: 筒井　稔（京都産業大学）

著者名(英語): Minoru Tsutsui (Kyoto Sangyo University)

キーワード: 電磁波，地中観測，地震波，地中岩盤，圧電効果，電気伝導度　　electromagnetic waves，observation in the earth，seismic waves，piezo-magnetic effect in the earth's crust，electrical conductivity

要約(英語): In order to confirm whether electromagnetic (EM) waves are excited by earthquakes or not, we have been observing EM signal in the earth, using an EM sensor system installed into a deep borehole. By shifting down the monitoring frequency from VLF to ELF range in December 2011, we have been able to detect EM signals excited by seismic waves, and have clarified the excitation mechanism of the EM pulses in the earth. Through detailed analysis of the EM signals based on the clarified behaviors of EM waves excited by seismic waves, we have found a method of deriving electrical parameters of the earth's medium.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.136 No.5 （2016） 特集：電磁界を用いた自然災害軽減のための観測・予測・解析技術

本誌掲載ページ: 221-226 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/136/5/136_221/_article/-char/ja/