and Earthquakes

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From original video taken 1990-2003 | Audio in Japanese

Ikeya believed microfracturing of rocks before earthquakes caused piezoelectric effects that created packets of EM waves of different frequencies capable of travelling significant distances through the earth's crust to the surface. He believed these accounted for many of the reported animal, atmospheric and electronic earthquake precursors, which he also reproduced in his EM laboratory. He also believed other EM wave creation/stress mechanisms were at work


In this video a granite specimen is struck by a wooden hammer, while an oscilloscope records the generation of electric charge

This is one of the mechanisms that could account for generation of EM waves before earthquakes