A Summary of Studies on Luminous Phenomena Accompanied with EarthQuakes
Yasui, Y.
Abstract
From ancient times many people have seen luminous phenomena accompanied with earthquake and recorded. Nevertheless the question of what seismo-luminosity is remains to be unsolved, and some scholars have thought that the phenomena are results of misconception of some other kinds of light.
The author has reported three papers on luminous phenomena accompanied with Hyuganada earthquake (1961) and Matsushiro earthquake swarms (1966-1968) in the previous issues of this memoir.
Present report will be the final one which summarizes his knowledge of seismoluminosity.
The author has convinced that the luminosity appears in the area of strong acidic rocks under the piezoelectric field caused by an earthquake, as it is pointed out by Drs. Finkelstein and Powell, when emanations in the air are sufficiently increased, trembled out from the earth interior by the earthquake.
Main body of the white or bluish white luminosity is a half of a sphere of several ten meters diameter, whose lower fringe touches the earth surface.
Various shapes and colors of observed luminous phenomena are resulted in from reflection and refraction by clouds or mists surrounding the main body.
As Drs. D. Finkelstein and J. R. Powell's theory of earthquake lightning is not widely known yet in Japan, the author will introduce an outline of their theory in the end of this paper.
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