ひずみ地震動の観測と地震マグニチュードとの関係

Abstract

The observations of vibrational strains in the earthquakes by means of these strain seismographshave been operated at Otsu Observatory and Kishu Mime.The relations between these maximum amplitude of these vibrational strains, and these seismicmagnitudes and these epicentral distances have been calculated from these observations.Now, assuming these azimuths of these epicenters and of these nodal lines are distributedunsforinly, a compensating factor for the constant term has been obtained as ｱ0.20.According to these relations, these coefficients respect to these attenuations of these strainamplitudes for these epicentral distances are almost equal to 1.0 except few events of the nearshock.