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Proceedings of the Japan Academy, Series B
Vol. 75 (1999) No. 7 P 186-189



A theory is proposed to explain how the electromagnetic waves are created from the epicenter of large earthquakes. By the increase of strong stress in the rock, exo-electrons are excited and emitted, and bulk plasmon can be produced. They propagate to the earth surface, and transform into electromagnetic waves. Simple order-estimation shows that the electromagnetic waves of the frequency range 10MHz-1 GHz may be observed. Some characteristics of observed earthquake related electromagnetic waves may be interpreted by our plasmon model.

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