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[2] TSUBOKAWA, I.: On relation between duration of crustal movement and magnitude of earthquake expected. J. Geod. Soc. Japan, 15, (1969), 75-88.
[3] Japan Meteorological Agency: The Seismological Bulletin of J.M.A., Supplementary Volumes Nos. 1, 2 and 4, (1958, 1966, 1972).
[4] Japan Meteorological Agency: The Seismological Bulletins of the Japan Meteorological Agency for Jan. 1971-Dec. 1975.
[5] TSUBOKAWA, I.: On relation between scale and time of duration of crustal movement and magnitude of expected earthquake. Publications for the 50th Aniversary of the Great Kanto Earthquake, 1923. Earthquake Res. Inst., Univ. of Tokyo, (1973), 293-310.