Observation and Analysis of Anomalous Terrestrial Diffraction as a Mechanism of Electromagnetic Precursors of Earthquakes
Masafumi Fujii
Abstract:Detection of earthquake precursors has long been a controversial issue with regard to its possibility and realizability. Here we present the detection of electromagnetic anomalous signals before large earthquakes using an observation network of very high frequency radio wave receivers close to major tectonic lines in Japan. The receivers are equipped with specifically designed narrowband filters to suppress noises and to detect extremely weak signals. We detected different types of electromagnetic anomalies be… Show more
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