著者
竹内 伸直 中鉢 憲賢 成田 憲一 本間 規泰 高橋 忠利
出版者
The Institute of Electrical Engineers of Japan
雑誌
電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)
巻号頁・発行日
vol.116, no.6, pp.719-724, 1996-05-20 (Released:2008-12-19)
参考文献数
8
被引用文献数
3 3

To examine the possibility of electromagnetic precusor preceding an earthquake the vertical earth potential difference (EPD) has been observed continuously at an urban area. Iregularily continued pulses had been observed for several hours before and after the Off East Hokkaido earthquake. We have referred both a series of signals of the terrestrial magnetism and the lightning location (LLP) map. No significant signal is recognized on those of terrestrial magnetism, however, severe lightning flashes occured over the Japan Sea at this time. To clarify the cause of the EPD pulse signal, the LLP map and the radar echo map are shown in the case of (a) near lightning flashes (b) far lightning flashes (c) the Off East Hokkaido earthquake. The signals in the cases of (b) and (c) are similar, therefore, the pulses are detected by the far lightning electromagnetic change. The LLP map must be referred to examine electromagnetic precusors of an earthquake. The EPD signal generated by propagating seisamic wave is also recorded.

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あんまりちゃんと読んでないけど多少関係ありそうhttps://t.co/dJTJ0LDSiV
【地震と雷の関係】メモ なるほど納得 「…地震波伝搬 による信号 を,地 磁気の微小変動および落雷位 置標定 による観測データを用いて解析 した。 この結果,こ の地震の発生 した前後数時間にわたつて日本海北部に激 し い雷活動が発生していた ことが明 らかになつた。」 https://t.co/C387STCDXA

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