OBSERVATIONS OF THE SECULAR AND ANNUAL CHANGES OF THE CRUSTAL STRAINS AT OSAKAYAMA
AbstractThe observations of the crustal strains in the directions of S 38°W and S 52°E at Osakayama with extensometers have been operated, and the secular and annual changes are obtained from these observations. These observations show that the crust is extended in S 52° E, and is contracted in S 38° W in the ratios of about 1.6 x 10^-6 per year. This result fully agrees with the result of the trigonometric survey by the Geographical Survey Institute.
TypeDepartmental Bulletin Paper
Contributions of the Geophysical Institute, Kyoto University