Electromagnetic Radiation Anomalies Before Moderately Strong and Strong Earthquakes

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概要

• 論文の詳細を見る

• Electromagnetic radiation observation have been conducted in China since the Tangshan earthquake in July 28, 1976. Up to now, 130 observatories have been established. The present observing frequency ranges are ultra-low frequency 0.01-20 Hz and point frequency from 10^3 to 10^4 Hz. In the past 20 years, more than 40 earthquakes with magnitude larger than 5.0 occurred in and around the observation network. By analyzing the electromagneticanomalies, it was demonstrated that the detection distance of the anomaly is related with the magnitude, the lasting time of anomalies are from several seconds to several tens days, and no electromagnetic radiation was observed coseismicaly.

• 独立行政法人防災科学技術研究所の論文
• 1995-03-31

著者

• Guan Huaping

  Center For Analysis And Prediction

• Liu Guiping

  Center for Analysis and Prediction

関連論文

• OBSERVATIONS AND RESEARCHES OF ELECT ROMAGNETIC WAVE OF EARTHQUAKES IN CHINA
• Electromagnetic Radiation Anomalies Before Moderately Strong and Strong Earthquakes
• A Possiple Mechanism of Impending Anomalous Earth Resistivity before Tangshan Earthquake (Ms=7.8)

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