Abstract
The continuous records of the crustal deformations have been got with extensometers, horizontal pendulum type tiltmeters and water tube tiltmeter at Osakayama Observatory before and after the earthquake near the city of Kyoto. The seismic intensity was 3 (rather strong), and its epicentral distance was 12.7km.In this paper, using the abrupt changes of the strains in the time of the earthquake, we calculate the radius of the earthquake volume, the total change of the elastic energy and the seismic magnitude. The elastic afterworking of the earthquake region has been observed with the high-sensitive and high speed's recording extensometers. According to the record, the relaxation time of the afterworking is 57 minutes, and then the solid viscosity in the seismic area is esteemed as 1014 c. g. s..
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Schedule a callMore From: Zisin (Journal of the Seismological Society of Japan. 2nd ser.)
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